1979514697 has 4 divisors (see below), whose sum is σ = 2095956756. Its totient is φ = 1863072640.

The previous prime is 1979514653. The next prime is 1979514709. The reversal of 1979514697 is 7964159791.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1293912841 + 685601856 = 35971^2 + 26184^2 .

It is a cyclic number.

It is not a de Polignac number, because 1979514697 - 2¹⁵ = 1979481929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1979514637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58221004 + ... + 58221037.

It is an arithmetic number, because the mean of its divisors is an integer number (523989189).

Almost surely, 2^1979514697 is an apocalyptic number.

1979514697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1979514697 is a deficient number, since it is larger than the sum of its proper divisors (116442059).

1979514697 is a wasteful number, since it uses less digits than its factorization.

1979514697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116442058.

The product of its digits is 4286520, while the sum is 58.

The square root of 1979514697 is about 44491.7374014547. The cubic root of 1979514697 is about 1255.6046349227.

The spelling of 1979514697 in words is "one billion, nine hundred seventy-nine million, five hundred fourteen thousand, six hundred ninety-seven".