348791631 has 4 divisors (see below), whose sum is σ = 465055512. Its totient is φ = 232527752.

The previous prime is 348791627. The next prime is 348791659. The reversal of 348791631 is 136197843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136197843 = 3 ⋅45399281.

It is a cyclic number.

It is not a de Polignac number, because 348791631 - 2² = 348791627 is a prime.

It is a super-2 number, since 2×348791631² = 243311203711280322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348791231) 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, 58131936 + ... + 58131941.

It is an arithmetic number, because the mean of its divisors is an integer number (116263878).

Almost surely, 2^348791631 is an apocalyptic number.

348791631 is a deficient number, since it is larger than the sum of its proper divisors (116263881).

348791631 is a wasteful number, since it uses less digits than its factorization.

348791631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116263880.

The product of its digits is 108864, while the sum is 42.

The square root of 348791631 is about 18675.9639911840. The cubic root of 348791631 is about 703.9179154629.

The spelling of 348791631 in words is "three hundred forty-eight million, seven hundred ninety-one thousand, six hundred thirty-one".