72667077 has 16 divisors (see below), whose sum is σ = 116559360. Its totient is φ = 39338352.

The previous prime is 72666989. The next prime is 72667079. The reversal of 72667077 is 77076627.

It is not a de Polignac number, because 72667077 - 2⁷ = 72666949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72667079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90663 + ... + 91460.

It is an arithmetic number, because the mean of its divisors is an integer number (7284960).

Almost surely, 2^72667077 is an apocalyptic number.

It is an amenable number.

72667077 is a deficient number, since it is larger than the sum of its proper divisors (43892283).

72667077 is a wasteful number, since it uses less digits than its factorization.

72667077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182152.

The product of its (nonzero) digits is 172872, while the sum is 42.

The square root of 72667077 is about 8524.4986362835. The cubic root of 72667077 is about 417.2976097216.

The spelling of 72667077 in words is "seventy-two million, six hundred sixty-seven thousand, seventy-seven".