97871487 has 8 divisors (see below), whose sum is σ = 149137536. Its totient is φ = 55926552.

The previous prime is 97871479. The next prime is 97871507. The reversal of 97871487 is 78417879.

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

It is not a de Polignac number, because 97871487 - 2³ = 97871479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97871467) 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, 2330253 + ... + 2330294.

It is an arithmetic number, because the mean of its divisors is an integer number (18642192).

Almost surely, 2^97871487 is an apocalyptic number.

97871487 is a deficient number, since it is larger than the sum of its proper divisors (51266049).

97871487 is a wasteful number, since it uses less digits than its factorization.

97871487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660557.

The product of its digits is 790272, while the sum is 51.

The square root of 97871487 is about 9893.0019205497. The cubic root of 97871487 is about 460.8420100965.

The spelling of 97871487 in words is "ninety-seven million, eight hundred seventy-one thousand, four hundred eighty-seven".