90880451 has 2 divisors, whose sum is σ = 90880452. Its totient is φ = 90880450.

The previous prime is 90880421. The next prime is 90880459. The reversal of 90880451 is 15408809.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90880451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90880459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45440225 + 45440226.

It is an arithmetic number, because the mean of its divisors is an integer number (45440226).

Almost surely, 2^90880451 is an apocalyptic number.

90880451 is a deficient number, since it is larger than the sum of its proper divisors (1).

90880451 is an equidigital number, since it uses as much as digits as its factorization.

90880451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 90880451 is about 9533.1238846456. The cubic root of 90880451 is about 449.5970895649.

The spelling of 90880451 in words is "ninety million, eight hundred eighty thousand, four hundred fifty-one".