72925919 has 8 divisors (see below), whose sum is σ = 82122240. Its totient is φ = 64157400.

The previous prime is 72925913. The next prime is 72925943. The reversal of 72925919 is 91952927.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72925919 is a prime.

It is a super-2 number, since 2×72925919² = 10636379323989122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72925919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72925913) 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, 106589 + ... + 107270.

It is an arithmetic number, because the mean of its divisors is an integer number (10265280).

Almost surely, 2^72925919 is an apocalyptic number.

72925919 is a deficient number, since it is larger than the sum of its proper divisors (9196321).

72925919 is a wasteful number, since it uses less digits than its factorization.

72925919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213901.

The product of its digits is 102060, while the sum is 44.

The square root of 72925919 is about 8539.6673822813. The cubic root of 72925919 is about 417.7924975296.

The spelling of 72925919 in words is "seventy-two million, nine hundred twenty-five thousand, nine hundred nineteen".