3942915623 has 2 divisors, whose sum is σ = 3942915624. Its totient is φ = 3942915622.

The previous prime is 3942915611. The next prime is 3942915643. The reversal of 3942915623 is 3265192493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3942915623 - 2¹⁸ = 3942653479 is a prime.

It is a super-2 number, since 2×3942915623² = 31093167220194956258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3942915643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971457811 + 1971457812.

It is an arithmetic number, because the mean of its divisors is an integer number (1971457812).

Almost surely, 2^3942915623 is an apocalyptic number.

3942915623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942915623 is an equidigital number, since it uses as much as digits as its factorization.

3942915623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 44.

The square root of 3942915623 is about 62792.6398792088. The cubic root of 3942915623 is about 1579.8135259019.

The spelling of 3942915623 in words is "three billion, nine hundred forty-two million, nine hundred fifteen thousand, six hundred twenty-three".