72351757 has 8 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 68943840.

The previous prime is 72351733. The next prime is 72351787. The reversal of 72351757 is 75715327.

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 72351757 - 2¹⁵ = 72318989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72351707) 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, 18757 + ... + 22282.

It is an arithmetic number, because the mean of its divisors is an integer number (9480240).

Almost surely, 2^72351757 is an apocalyptic number.

It is an amenable number.

72351757 is a deficient number, since it is larger than the sum of its proper divisors (3490163).

72351757 is a wasteful number, since it uses less digits than its factorization.

72351757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41123.

The product of its digits is 51450, while the sum is 37.

The square root of 72351757 is about 8505.9835997961. The cubic root of 72351757 is about 416.6931495345.

The spelling of 72351757 in words is "seventy-two million, three hundred fifty-one thousand, seven hundred fifty-seven".