87240502 has 8 divisors (see below), whose sum is σ = 130907376. Its totient is φ = 43604712.

The previous prime is 87240493. The next prime is 87240509. The reversal of 87240502 is 20504278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87240502² = 15221810378424008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87240509) 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, 1423 + ... + 13285.

It is an arithmetic number, because the mean of its divisors is an integer number (16363422).

Almost surely, 2^87240502 is an apocalyptic number.

87240502 is a deficient number, since it is larger than the sum of its proper divisors (43666874).

87240502 is a wasteful number, since it uses less digits than its factorization.

87240502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 87240502 is about 9340.2624160138. The cubic root of 87240502 is about 443.5126914180.

The spelling of 87240502 in words is "eighty-seven million, two hundred forty thousand, five hundred two".