87970893 has 16 divisors (see below), whose sum is σ = 124862400. Its totient is φ = 54933120.

The previous prime is 87970889. The next prime is 87970907. The reversal of 87970893 is 39807978.

It is a happy number.

It is not a de Polignac number, because 87970893 - 2² = 87970889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87970853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3598 + ... + 13743.

It is an arithmetic number, because the mean of its divisors is an integer number (7803900).

Almost surely, 2^87970893 is an apocalyptic number.

It is an amenable number.

87970893 is a deficient number, since it is larger than the sum of its proper divisors (36891507).

87970893 is a wasteful number, since it uses less digits than its factorization.

87970893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17452.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 87970893 is about 9379.2799830264. The cubic root of 87970893 is about 444.7469722601.

It can be divided in two parts, 879708 and 93, that added together give a triangular number (879801 = T₁₃₂₆).

The spelling of 87970893 in words is "eighty-seven million, nine hundred seventy thousand, eight hundred ninety-three".