72396767 has 4 divisors (see below), whose sum is σ = 72522816. Its totient is φ = 72270720.

The previous prime is 72396763. The next prime is 72396769. The reversal of 72396767 is 76769327.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72396767 - 2² = 72396763 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 (72396763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62159 + ... + 63312.

It is an arithmetic number, because the mean of its divisors is an integer number (18130704).

Almost surely, 2^72396767 is an apocalyptic number.

72396767 is a deficient number, since it is larger than the sum of its proper divisors (126049).

72396767 is a wasteful number, since it uses less digits than its factorization.

72396767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126048.

The product of its digits is 666792, while the sum is 47.

The square root of 72396767 is about 8508.6289729897. The cubic root of 72396767 is about 416.7795398382.

The spelling of 72396767 in words is "seventy-two million, three hundred ninety-six thousand, seven hundred sixty-seven".