102587997 has 4 divisors (see below), whose sum is σ = 136784000. Its totient is φ = 68391996.

The previous prime is 102587983. The next prime is 102587999. The reversal of 102587997 is 799785201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799785201 = 3 ⋅266595067.

It is not a de Polignac number, because 102587997 - 2⁷ = 102587869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102587999) 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, 17097997 + ... + 17098002.

It is an arithmetic number, because the mean of its divisors is an integer number (34196000).

Almost surely, 2^102587997 is an apocalyptic number.

It is an amenable number.

102587997 is a deficient number, since it is larger than the sum of its proper divisors (34196003).

102587997 is an equidigital number, since it uses as much as digits as its factorization.

102587997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34196002.

The product of its (nonzero) digits is 317520, while the sum is 48.

The square root of 102587997 is about 10128.5732953857. The cubic root of 102587997 is about 468.1289685838.

The spelling of 102587997 in words is "one hundred two million, five hundred eighty-seven thousand, nine hundred ninety-seven".