85979602 has 4 divisors (see below), whose sum is σ = 128969406. Its totient is φ = 42989800.

The previous prime is 85979599. The next prime is 85979603. The reversal of 85979602 is 20697958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20697958 = 2 ⋅10348979.

It can be written as a sum of positive squares in only one way, i.e., 65918161 + 20061441 = 8119^2 + 4479^2 .

It is not an unprimeable number, because it can be changed into a prime (85979603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21494899 + ... + 21494902.

Almost surely, 2^85979602 is an apocalyptic number.

85979602 is a deficient number, since it is larger than the sum of its proper divisors (42989804).

85979602 is a wasteful number, since it uses less digits than its factorization.

85979602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42989803.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 85979602 is about 9272.5186438206. The cubic root of 85979602 is about 441.3655954719.

The spelling of 85979602 in words is "eighty-five million, nine hundred seventy-nine thousand, six hundred two".