87570465 has 16 divisors (see below), whose sum is σ = 143531136. Its totient is φ = 45564800.

The previous prime is 87570463. The next prime is 87570481. The reversal of 87570465 is 56407578.

It is not a de Polignac number, because 87570465 - 2¹ = 87570463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87570463) 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, 70581 + ... + 71810.

It is an arithmetic number, because the mean of its divisors is an integer number (8970696).

Almost surely, 2^87570465 is an apocalyptic number.

It is an amenable number.

87570465 is a deficient number, since it is larger than the sum of its proper divisors (55960671).

87570465 is a wasteful number, since it uses less digits than its factorization.

87570465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142440.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 87570465 is about 9357.9092216157. The cubic root of 87570465 is about 444.0711425244.

The spelling of 87570465 in words is "eighty-seven million, five hundred seventy thousand, four hundred sixty-five".