87620258 has 8 divisors (see below), whose sum is σ = 143378640. Its totient is φ = 39827380.

The previous prime is 87620249. The next prime is 87620279. The reversal of 87620258 is 85202678.

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

It is a super-2 number, since 2×87620258² = 15354619223973128, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991348 + ... + 1991391.

It is an arithmetic number, because the mean of its divisors is an integer number (17922330).

Almost surely, 2^87620258 is an apocalyptic number.

87620258 is a deficient number, since it is larger than the sum of its proper divisors (55758382).

87620258 is a wasteful number, since it uses less digits than its factorization.

87620258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982752.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 87620258 is about 9360.5693202924. The cubic root of 87620258 is about 444.1552935936.

It can be divided in two parts, 87620 and 258, that added together give a palindrome (87878).

The spelling of 87620258 in words is "eighty-seven million, six hundred twenty thousand, two hundred fifty-eight".