660970598 has 4 divisors (see below), whose sum is σ = 991455900. Its totient is φ = 330485298.

The previous prime is 660970577. The next prime is 660970621. The reversal of 660970598 is 895079066.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165242648 + ... + 165242651.

It is an arithmetic number, because the mean of its divisors is an integer number (247863975).

Almost surely, 2^660970598 is an apocalyptic number.

660970598 is a deficient number, since it is larger than the sum of its proper divisors (330485302).

660970598 is a wasteful number, since it uses less digits than its factorization.

660970598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330485301.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 660970598 is about 25709.3484553771. The cubic root of 660970598 is about 871.0853578795.

The spelling of 660970598 in words is "six hundred sixty million, nine hundred seventy thousand, five hundred ninety-eight".