86979754 has 4 divisors (see below), whose sum is σ = 130469634. Its totient is φ = 43489876.

The previous prime is 86979749. The next prime is 86979773. The reversal of 86979754 is 45797968.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83997225 + 2982529 = 9165^2 + 1727^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86979695 and 86979704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21744937 + ... + 21744940.

Almost surely, 2^86979754 is an apocalyptic number.

86979754 is a deficient number, since it is larger than the sum of its proper divisors (43489880).

86979754 is a wasteful number, since it uses less digits than its factorization.

86979754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43489879.

The product of its digits is 3810240, while the sum is 55.

The square root of 86979754 is about 9326.2936904217. The cubic root of 86979754 is about 443.0703874759.

The spelling of 86979754 in words is "eighty-six million, nine hundred seventy-nine thousand, seven hundred fifty-four".