72452047 has 8 divisors (see below), whose sum is σ = 76353120. Its totient is φ = 68613600.

The previous prime is 72451993. The next prime is 72452057. The reversal of 72452047 is 74025427.

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

It is not a de Polignac number, because 72452047 - 2¹¹ = 72449999 is a prime.

It is a super-2 number, since 2×72452047² = 10498598228980418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72452057) 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, 13272 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (9544140).

Almost surely, 2^72452047 is an apocalyptic number.

72452047 is a deficient number, since it is larger than the sum of its proper divisors (3901073).

72452047 is a wasteful number, since it uses less digits than its factorization.

72452047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31313.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 72452047 is about 8511.8768200674. The cubic root of 72452047 is about 416.8855929687.

The spelling of 72452047 in words is "seventy-two million, four hundred fifty-two thousand, forty-seven".