95401991 has 2 divisors, whose sum is σ = 95401992. Its totient is φ = 95401990.

The previous prime is 95401979. The next prime is 95402009. The reversal of 95401991 is 19910459.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-95401991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (95401921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47700995 + 47700996.

It is an arithmetic number, because the mean of its divisors is an integer number (47700996).

Almost surely, 2^95401991 is an apocalyptic number.

95401991 is a deficient number, since it is larger than the sum of its proper divisors (1).

95401991 is an equidigital number, since it uses as much as digits as its factorization.

95401991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 95401991 is about 9767.3942789262. The cubic root of 95401991 is about 456.9329528946.

The spelling of 95401991 in words is "ninety-five million, four hundred one thousand, nine hundred ninety-one".