1976979974 has 16 divisors (see below), whose sum is σ = 2999736720. Its totient is φ = 977114880.

The previous prime is 1976979947. The next prime is 1976980003. The reversal of 1976979974 is 4799796791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74114 + ... + 97194.

It is an arithmetic number, because the mean of its divisors is an integer number (187483545).

Almost surely, 2^1976979974 is an apocalyptic number.

1976979974 is a deficient number, since it is larger than the sum of its proper divisors (1022756746).

1976979974 is a wasteful number, since it uses less digits than its factorization.

1976979974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23575.

The product of its digits is 54010152, while the sum is 68.

The square root of 1976979974 is about 44463.2429541526. The cubic root of 1976979974 is about 1255.0684817369.

The spelling of 1976979974 in words is "one billion, nine hundred seventy-six million, nine hundred seventy-nine thousand, nine hundred seventy-four".