72017049 has 32 divisors (see below), whose sum is σ = 115274880. Its totient is φ = 39508992.

The previous prime is 72017041. The next prime is 72017053. The reversal of 72017049 is 94071027.

It is not a de Polignac number, because 72017049 - 2³ = 72017041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72017041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9739 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (3602340).

Almost surely, 2^72017049 is an apocalyptic number.

It is an amenable number.

72017049 is a deficient number, since it is larger than the sum of its proper divisors (43257831).

72017049 is a wasteful number, since it uses less digits than its factorization.

72017049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 72017049 is about 8486.2859367335. The cubic root of 72017049 is about 416.0495984533.

The spelling of 72017049 in words is "seventy-two million, seventeen thousand, forty-nine".