2043979631 has 2 divisors, whose sum is σ = 2043979632. Its totient is φ = 2043979630.

The previous prime is 2043979559. The next prime is 2043979661. The reversal of 2043979631 is 1369793402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2043979631 - 2²² = 2039785327 is a prime.

It is a super-2 number, since 2×2043979631² = 8355705463885792322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043979661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021989815 + 1021989816.

It is an arithmetic number, because the mean of its divisors is an integer number (1021989816).

Almost surely, 2^2043979631 is an apocalyptic number.

2043979631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043979631 is an equidigital number, since it uses as much as digits as its factorization.

2043979631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 2043979631 is about 45210.3929533907. The cubic root of 2043979631 is about 1269.0893157145.

The spelling of 2043979631 in words is "two billion, forty-three million, nine hundred seventy-nine thousand, six hundred thirty-one".