72774017 has 8 divisors (see below), whose sum is σ = 75167136. Its totient is φ = 70412832.

The previous prime is 72773983. The next prime is 72774041. The reversal of 72774017 is 71047727.

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 72774017 - 2⁸ = 72773761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72774067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3308 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (9395892).

Almost surely, 2^72774017 is an apocalyptic number.

It is an amenable number.

72774017 is a deficient number, since it is larger than the sum of its proper divisors (2393119).

72774017 is a wasteful number, since it uses less digits than its factorization.

72774017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15967.

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 72774017 is about 8530.7688399112. The cubic root of 72774017 is about 417.5022137643.

The spelling of 72774017 in words is "seventy-two million, seven hundred seventy-four thousand, seventeen".