761928091 has 2 divisors, whose sum is σ = 761928092. Its totient is φ = 761928090.

The previous prime is 761928077. The next prime is 761928121. The reversal of 761928091 is 190829167.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 761928091 - 2⁵ = 761928059 is a prime.

It is not a weakly prime, because it can be changed into another prime (761928001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380964045 + 380964046.

It is an arithmetic number, because the mean of its divisors is an integer number (380964046).

Almost surely, 2^761928091 is an apocalyptic number.

761928091 is a deficient number, since it is larger than the sum of its proper divisors (1).

761928091 is an equidigital number, since it uses as much as digits as its factorization.

761928091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 761928091 is about 27603.0449588447. The cubic root of 761928091 is about 913.3516027064.

The spelling of 761928091 in words is "seven hundred sixty-one million, nine hundred twenty-eight thousand, ninety-one".