3990914623 has 4 divisors (see below), whose sum is σ = 3991045608. Its totient is φ = 3990783640.

The previous prime is 3990914597. The next prime is 3990914687. The reversal of 3990914623 is 3264190993.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3990914623 - 2⁵ = 3990914591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990914423) 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, 6840 + ... + 89602.

It is an arithmetic number, because the mean of its divisors is an integer number (997761402).

Almost surely, 2^3990914623 is an apocalyptic number.

3990914623 is a deficient number, since it is larger than the sum of its proper divisors (130985).

3990914623 is an equidigital number, since it uses as much as digits as its factorization.

3990914623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130984.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 3990914623 is about 63173.6861596662. The cubic root of 3990914623 is about 1586.1982961333.

The spelling of 3990914623 in words is "three billion, nine hundred ninety million, nine hundred fourteen thousand, six hundred twenty-three".