87497853 has 8 divisors (see below), whose sum is σ = 118069728. Its totient is φ = 57628944.

The previous prime is 87497849. The next prime is 87497857. The reversal of 87497853 is 35879478.

It is an interprime number because it is at equal distance from previous prime (87497849) and next prime (87497857).

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

It is not a de Polignac number, because 87497853 - 2² = 87497849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87497796 and 87497805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87497857) 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, 175450 + ... + 175947.

It is an arithmetic number, because the mean of its divisors is an integer number (14758716).

Almost surely, 2^87497853 is an apocalyptic number.

87497853 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

87497853 is a deficient number, since it is larger than the sum of its proper divisors (30571875).

87497853 is a wasteful number, since it uses less digits than its factorization.

87497853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351483.

The product of its digits is 1693440, while the sum is 51.

The square root of 87497853 is about 9354.0287042536. The cubic root of 87497853 is about 443.9483697370.

The spelling of 87497853 in words is "eighty-seven million, four hundred ninety-seven thousand, eight hundred fifty-three".