72190677 has 8 divisors (see below), whose sum is σ = 103658464. Its totient is φ = 44425008.

The previous prime is 72190673. The next prime is 72190681. The reversal of 72190677 is 77609127.

It is an interprime number because it is at equal distance from previous prime (72190673) and next prime (72190681).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72190677 - 2² = 72190673 is a prime.

It is a super-2 number, since 2×72190677² = 10422987691436658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1851043 = 72190677 / (7 + 2 + 1 + 9 + 0 + 6 + 7 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72190673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925483 + ... + 925560.

It is an arithmetic number, because the mean of its divisors is an integer number (12957308).

Almost surely, 2^72190677 is an apocalyptic number.

It is an amenable number.

72190677 is a deficient number, since it is larger than the sum of its proper divisors (31467787).

72190677 is a wasteful number, since it uses less digits than its factorization.

72190677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851059.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 72190677 is about 8496.5096951631. The cubic root of 72190677 is about 416.3836854732.

The spelling of 72190677 in words is "seventy-two million, one hundred ninety thousand, six hundred seventy-seven".