9072557 has 16 divisors (see below), whose sum is σ = 10738560. Its totient is φ = 7584192.

The previous prime is 9072541. The next prime is 9072587. The reversal of 9072557 is 7552709.

It is not a de Polignac number, because 9072557 - 2⁴ = 9072541 is a prime.

It is a super-2 number, since 2×9072557² = 164622581036498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9072517) 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, 4883 + ... + 6479.

It is an arithmetic number, because the mean of its divisors is an integer number (671160).

Almost surely, 2^9072557 is an apocalyptic number.

It is an amenable number.

9072557 is a deficient number, since it is larger than the sum of its proper divisors (1666003).

9072557 is a wasteful number, since it uses less digits than its factorization.

9072557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 9072557 is about 3012.0685583167. The cubic root of 9072557 is about 208.5658670072.

The spelling of 9072557 in words is "nine million, seventy-two thousand, five hundred fifty-seven".