72772437 has 8 divisors (see below), whose sum is σ = 101248704. Its totient is φ = 46405568.

The previous prime is 72772411. The next prime is 72772439. The reversal of 72772437 is 73427727.

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

It is a cyclic number.

It is not a de Polignac number, because 72772437 - 2¹¹ = 72770389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72772395 and 72772404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72772439) 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, 527268 + ... + 527405.

It is an arithmetic number, because the mean of its divisors is an integer number (12656088).

Almost surely, 2^72772437 is an apocalyptic number.

It is an amenable number.

72772437 is a deficient number, since it is larger than the sum of its proper divisors (28476267).

72772437 is a wasteful number, since it uses less digits than its factorization.

72772437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054699.

The product of its digits is 115248, while the sum is 39.

The square root of 72772437 is about 8530.6762334530. The cubic root of 72772437 is about 417.4991922726.

The spelling of 72772437 in words is "seventy-two million, seven hundred seventy-two thousand, four hundred thirty-seven".