89425640 has 16 divisors (see below), whose sum is σ = 201207780. Its totient is φ = 35770240.

The previous prime is 89425639. The next prime is 89425643. The reversal of 89425640 is 4652498.

It can be written as a sum of positive squares in 2 ways, for example, as 89378116 + 47524 = 9454^2 + 218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89425594 and 89425603.

It is not an unprimeable number, because it can be changed into a prime (89425643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117781 + ... + 1117860.

Almost surely, 2^89425640 is an apocalyptic number.

It is an amenable number.

89425640 is an abundant number, since it is smaller than the sum of its proper divisors (111782140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89425640 is a wasteful number, since it uses less digits than its factorization.

89425640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235652 (or 2235648 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 89425640 is about 9456.5130994463. The cubic root of 89425640 is about 447.1851285213.

The spelling of 89425640 in words is "eighty-nine million, four hundred twenty-five thousand, six hundred forty".