89070549 has 16 divisors (see below), whose sum is σ = 120320640. Its totient is φ = 58605120.

The previous prime is 89070547. The next prime is 89070557. The reversal of 89070549 is 94507098.

It is not a de Polignac number, because 89070549 - 2¹ = 89070547 is a prime.

It is a super-2 number, since 2×89070549² = 15867125398322802, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89070549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89070547) 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, 137344 + ... + 137990.

It is an arithmetic number, because the mean of its divisors is an integer number (7520040).

Almost surely, 2^89070549 is an apocalyptic number.

It is an amenable number.

89070549 is a deficient number, since it is larger than the sum of its proper divisors (31250091).

89070549 is a wasteful number, since it uses less digits than its factorization.

89070549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 89070549 is about 9437.7194808916. The cubic root of 89070549 is about 446.5924496749.

The spelling of 89070549 in words is "eighty-nine million, seventy thousand, five hundred forty-nine".