880791551 has 4 divisors (see below), whose sum is σ = 881238600. Its totient is φ = 880344504.

The previous prime is 880791547. The next prime is 880791629. The reversal of 880791551 is 155197088.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 880791551 - 2² = 880791547 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 (880791851) 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, 220556 + ... + 224513.

It is an arithmetic number, because the mean of its divisors is an integer number (220309650).

Almost surely, 2^880791551 is an apocalyptic number.

880791551 is a deficient number, since it is larger than the sum of its proper divisors (447049).

880791551 is a wasteful number, since it uses less digits than its factorization.

880791551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447048.

The product of its (nonzero) digits is 100800, while the sum is 44.

The square root of 880791551 is about 29678.1325389587. The cubic root of 880791551 is about 958.5712075183.

The spelling of 880791551 in words is "eight hundred eighty million, seven hundred ninety-one thousand, five hundred fifty-one".