72674777 has 4 divisors (see below), whose sum is σ = 83056896. Its totient is φ = 62292660.

The previous prime is 72674759. The next prime is 72674803. The reversal of 72674777 is 77747627.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72674777 - 2¹² = 72670681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72674177) 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, 5191049 + ... + 5191062.

It is an arithmetic number, because the mean of its divisors is an integer number (20764224).

Almost surely, 2^72674777 is an apocalyptic number.

It is an amenable number.

72674777 is a deficient number, since it is larger than the sum of its proper divisors (10382119).

72674777 is a wasteful number, since it uses less digits than its factorization.

72674777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10382118.

The product of its digits is 806736, while the sum is 47.

The square root of 72674777 is about 8524.9502637845. The cubic root of 72674777 is about 417.3123485288.

The spelling of 72674777 in words is "seventy-two million, six hundred seventy-four thousand, seven hundred seventy-seven".