72665035 has 4 divisors (see below), whose sum is σ = 87198048. Its totient is φ = 58132024.

The previous prime is 72665009. The next prime is 72665057. The reversal of 72665035 is 53056627.

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 72665035 - 2¹⁵ = 72632267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7266499 + ... + 7266508.

It is an arithmetic number, because the mean of its divisors is an integer number (21799512).

Almost surely, 2^72665035 is an apocalyptic number.

72665035 is a deficient number, since it is larger than the sum of its proper divisors (14533013).

72665035 is a wasteful number, since it uses less digits than its factorization.

72665035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14533012.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 72665035 is about 8524.3788630023. The cubic root of 72665035 is about 417.2937008918.

The spelling of 72665035 in words is "seventy-two million, six hundred sixty-five thousand, thirty-five".