1936920731 has 2 divisors, whose sum is σ = 1936920732. Its totient is φ = 1936920730.

The previous prime is 1936920697. The next prime is 1936920737. The reversal of 1936920731 is 1370296391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1936920731 - 2¹⁸ = 1936658587 is a prime.

It is a super-2 number, since 2×1936920731² = 7503323836355148722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1936920737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968460365 + 968460366.

It is an arithmetic number, because the mean of its divisors is an integer number (968460366).

Almost surely, 2^1936920731 is an apocalyptic number.

1936920731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936920731 is an equidigital number, since it uses as much as digits as its factorization.

1936920731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 1936920731 is about 44010.4616085767. The cubic root of 1936920731 is about 1246.5334847845.

The spelling of 1936920731 in words is "one billion, nine hundred thirty-six million, nine hundred twenty thousand, seven hundred thirty-one".