3990262093 has 4 divisors (see below), whose sum is σ = 4012554240. Its totient is φ = 3967969948.

The previous prime is 3990262063. The next prime is 3990262097. The reversal of 3990262093 is 3902620993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3902620993 = 1879 ⋅2076967.

It is a cyclic number.

It is not a de Polignac number, because 3990262093 - 2²⁹ = 3453391181 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 (3990262097) 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, 11145805 + ... + 11146162.

It is an arithmetic number, because the mean of its divisors is an integer number (1003138560).

Almost surely, 2^3990262093 is an apocalyptic number.

It is an amenable number.

3990262093 is a deficient number, since it is larger than the sum of its proper divisors (22292147).

3990262093 is a wasteful number, since it uses less digits than its factorization.

3990262093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22292146.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 3990262093 is about 63168.5213773443. The cubic root of 3990262093 is about 1586.1118415660. Note that the first 3 decimals are identical.

The spelling of 3990262093 in words is "three billion, nine hundred ninety million, two hundred sixty-two thousand, ninety-three".