86981948 has 12 divisors (see below), whose sum is σ = 155758680. Its totient is φ = 42479472.

The previous prime is 86981927. The next prime is 86981953. The reversal of 86981948 is 84918968.

It is a self number, because there is not a number n which added to its sum of digits gives 86981948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252683 + ... + 253026.

It is an arithmetic number, because the mean of its divisors is an integer number (12979890).

Almost surely, 2^86981948 is an apocalyptic number.

It is an amenable number.

86981948 is a deficient number, since it is larger than the sum of its proper divisors (68776732).

86981948 is a wasteful number, since it uses less digits than its factorization.

86981948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505756 (or 505754 counting only the distinct ones).

The product of its digits is 995328, while the sum is 53.

The square root of 86981948 is about 9326.4113141122. The cubic root of 86981948 is about 443.0741128189.

The spelling of 86981948 in words is "eighty-six million, nine hundred eighty-one thousand, nine hundred forty-eight".