790367561 has 4 divisors (see below), whose sum is σ = 824731392. Its totient is φ = 756003732.

The previous prime is 790367549. The next prime is 790367581. The reversal of 790367561 is 165763097.

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.

It is a cyclic number.

It is not a de Polignac number, because 790367561 - 2¹⁸ = 790105417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790367531) 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, 17181881 + ... + 17181926.

It is an arithmetic number, because the mean of its divisors is an integer number (206182848).

Almost surely, 2^790367561 is an apocalyptic number.

It is an amenable number.

790367561 is a deficient number, since it is larger than the sum of its proper divisors (34363831).

790367561 is a wasteful number, since it uses less digits than its factorization.

790367561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34363830.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 790367561 is about 28113.4765014930. The cubic root of 790367561 is about 924.5768938100.

The spelling of 790367561 in words is "seven hundred ninety million, three hundred sixty-seven thousand, five hundred sixty-one".