1979814037 has 4 divisors (see below), whose sum is σ = 1980178156. Its totient is φ = 1979449920.

The previous prime is 1979814013. The next prime is 1979814043. The reversal of 1979814037 is 7304189791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7304189791 = 17 ⋅429658223.

It can be written as a sum of positive squares in 2 ways, for example, as 622702116 + 1357111921 = 24954^2 + 36839^2 .

It is a cyclic number.

It is not a de Polignac number, because 1979814037 - 2⁷ = 1979813909 is a prime.

It is a super-2 number, since 2×1979814037² = 7839327242204474738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979814097) 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, 173778 + ... + 184819.

It is an arithmetic number, because the mean of its divisors is an integer number (495044539).

Almost surely, 2^1979814037 is an apocalyptic number.

It is an amenable number.

1979814037 is a deficient number, since it is larger than the sum of its proper divisors (364119).

1979814037 is an equidigital number, since it uses as much as digits as its factorization.

1979814037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364118.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 1979814037 is about 44495.1012696904. The cubic root of 1979814037 is about 1255.6679221093.

The spelling of 1979814037 in words is "one billion, nine hundred seventy-nine million, eight hundred fourteen thousand, thirty-seven".