72684895 has 8 divisors (see below), whose sum is σ = 87315840. Its totient is φ = 58085280.

The previous prime is 72684893. The next prime is 72684917. The reversal of 72684895 is 59848627.

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

It is not a de Polignac number, because 72684895 - 2¹ = 72684893 is a prime.

It is a super-2 number, since 2×72684895² = 10566187922322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72684893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380 + ... + 12289.

It is an arithmetic number, because the mean of its divisors is an integer number (10914480).

Almost surely, 2^72684895 is an apocalyptic number.

72684895 is a deficient number, since it is larger than the sum of its proper divisors (14630945).

72684895 is a wasteful number, since it uses less digits than its factorization.

72684895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665.

The product of its digits is 967680, while the sum is 49.

The square root of 72684895 is about 8525.5436776783. The cubic root of 72684895 is about 417.3317141215.

The spelling of 72684895 in words is "seventy-two million, six hundred eighty-four thousand, eight hundred ninety-five".