102487487 has 4 divisors (see below), whose sum is σ = 103722360. Its totient is φ = 101252616.

The previous prime is 102487481. The next prime is 102487493. The reversal of 102487487 is 784784201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (102487481) and next prime (102487493).

It is a cyclic number.

It is not a de Polignac number, because 102487487 - 2²² = 98293183 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 (102487481) 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, 617312 + ... + 617477.

It is an arithmetic number, because the mean of its divisors is an integer number (25930590).

Almost surely, 2^102487487 is an apocalyptic number.

102487487 is a deficient number, since it is larger than the sum of its proper divisors (1234873).

102487487 is an equidigital number, since it uses as much as digits as its factorization.

102487487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234872.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 102487487 is about 10123.6103737748. The cubic root of 102487487 is about 467.9760364066.

The spelling of 102487487 in words is "one hundred two million, four hundred eighty-seven thousand, four hundred eighty-seven".