72426697 has 8 divisors (see below), whose sum is σ = 83322752. Its totient is φ = 61668000.

The previous prime is 72426667. The next prime is 72426709. The reversal of 72426697 is 79662427.

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 72426697 - 2⁷ = 72426569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72426617) 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, 33204 + ... + 35317.

It is an arithmetic number, because the mean of its divisors is an integer number (10415344).

Almost surely, 2^72426697 is an apocalyptic number.

It is an amenable number.

72426697 is a deficient number, since it is larger than the sum of its proper divisors (10896055).

72426697 is a wasteful number, since it uses less digits than its factorization.

72426697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68679.

The product of its digits is 254016, while the sum is 43.

The square root of 72426697 is about 8510.3875939936. The cubic root of 72426697 is about 416.8369664035.

The spelling of 72426697 in words is "seventy-two million, four hundred twenty-six thousand, six hundred ninety-seven".