72650031 has 8 divisors (see below), whose sum is σ = 101078400. Its totient is φ = 46327512.

The previous prime is 72650003. The next prime is 72650041. The reversal of 72650031 is 13005627.

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

It is not a de Polignac number, because 72650031 - 2⁵ = 72649999 is a prime.

It is a super-2 number, since 2×72650031² = 10556054008601922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72649983 and 72650010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72650041) 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, 526381 + ... + 526518.

It is an arithmetic number, because the mean of its divisors is an integer number (12634800).

Almost surely, 2^72650031 is an apocalyptic number.

72650031 is a deficient number, since it is larger than the sum of its proper divisors (28428369).

72650031 is a wasteful number, since it uses less digits than its factorization.

72650031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052925.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 72650031 is about 8523.4987534463. The cubic root of 72650031 is about 417.2649777438.

Adding to 72650031 its reverse (13005627), we get a palindrome (85655658).

The spelling of 72650031 in words is "seventy-two million, six hundred fifty thousand, thirty-one".