87529490 has 16 divisors (see below), whose sum is σ = 164403648. Its totient is φ = 33489456.

The previous prime is 87529489. The next prime is 87529493. The reversal of 87529490 is 9492578.

It is a happy number.

It is a super-2 number, since 2×87529490² = 15322823239320200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87529493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190052 + ... + 190511.

It is an arithmetic number, because the mean of its divisors is an integer number (10275228).

Almost surely, 2^87529490 is an apocalyptic number.

87529490 is a deficient number, since it is larger than the sum of its proper divisors (76874158).

87529490 is a wasteful number, since it uses less digits than its factorization.

87529490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380593.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 87529490 is about 9355.7196409469. The cubic root of 87529490 is about 444.0018701055.

The spelling of 87529490 in words is "eighty-seven million, five hundred twenty-nine thousand, four hundred ninety".