88661507 has 8 divisors (see below), whose sum is σ = 97055280. Its totient is φ = 80323360.

The previous prime is 88661491. The next prime is 88661539. The reversal of 88661507 is 70516688.

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

It is a cyclic number.

It is not a de Polignac number, because 88661507 - 2⁴ = 88661491 is a prime.

It is a super-2 number, since 2×88661507² = 15721725647022098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88661597) 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, 10532 + ... + 16977.

It is an arithmetic number, because the mean of its divisors is an integer number (12131910).

Almost surely, 2^88661507 is an apocalyptic number.

88661507 is a deficient number, since it is larger than the sum of its proper divisors (8393773).

88661507 is a wasteful number, since it uses less digits than its factorization.

88661507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27813.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 88661507 is about 9416.0239485677. The cubic root of 88661507 is about 445.9077661229.

The spelling of 88661507 in words is "eighty-eight million, six hundred sixty-one thousand, five hundred seven".