87971299 has 8 divisors (see below), whose sum is σ = 94876880. Its totient is φ = 81085536.

The previous prime is 87971203. The next prime is 87971309. The reversal of 87971299 is 99217978.

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 87971299 - 2⁷ = 87971171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87971999) 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, 5029 + ... + 14185.

It is an arithmetic number, because the mean of its divisors is an integer number (11859610).

Almost surely, 2^87971299 is an apocalyptic number.

87971299 is a deficient number, since it is larger than the sum of its proper divisors (6905581).

87971299 is a wasteful number, since it uses less digits than its factorization.

87971299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9909.

The product of its digits is 571536, while the sum is 52.

The square root of 87971299 is about 9379.3016264539. The cubic root of 87971299 is about 444.7476564523.

The spelling of 87971299 in words is "eighty-seven million, nine hundred seventy-one thousand, two hundred ninety-nine".