3798626691 has 4 divisors (see below), whose sum is σ = 5064835592. Its totient is φ = 2532417792.

The previous prime is 3798626681. The next prime is 3798626701. The reversal of 3798626691 is 1966268973.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3798626681) and next prime (3798626701).

It is not a de Polignac number, because 3798626691 - 2⁶ = 3798626627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3798626681) 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, 633104446 + ... + 633104451.

It is an arithmetic number, because the mean of its divisors is an integer number (1266208898).

Almost surely, 2^3798626691 is an apocalyptic number.

3798626691 is a deficient number, since it is larger than the sum of its proper divisors (1266208901).

3798626691 is a wasteful number, since it uses less digits than its factorization.

3798626691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266208900.

The product of its digits is 5878656, while the sum is 57.

The square root of 3798626691 is about 61633.0000162251. Note that the first 4 decimals coincide. The cubic root of 3798626691 is about 1560.3027424442.

The spelling of 3798626691 in words is "three billion, seven hundred ninety-eight million, six hundred twenty-six thousand, six hundred ninety-one".