86731948 has 6 divisors (see below), whose sum is σ = 151780916. Its totient is φ = 43365972.

The previous prime is 86731937. The next prime is 86731949. The reversal of 86731948 is 84913768.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86731898 and 86731907.

It is not an unprimeable number, because it can be changed into a prime (86731949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10841490 + ... + 10841497.

Almost surely, 2^86731948 is an apocalyptic number.

It is an amenable number.

86731948 is a deficient number, since it is larger than the sum of its proper divisors (65048968).

86731948 is a wasteful number, since it uses less digits than its factorization.

86731948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21682991 (or 21682989 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 86731948 is about 9312.9988725437. The cubic root of 86731948 is about 442.6492169155.

The spelling of 86731948 in words is "eighty-six million, seven hundred thirty-one thousand, nine hundred forty-eight".