76394491 has 2 divisors, whose sum is σ = 76394492. Its totient is φ = 76394490.

The previous prime is 76394471. The next prime is 76394519. The reversal of 76394491 is 19449367.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76394491 - 2⁷ = 76394363 is a prime.

It is a super-2 number, since 2×76394491² = 11672236510298162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76394401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38197245 + 38197246.

It is an arithmetic number, because the mean of its divisors is an integer number (38197246).

Almost surely, 2^76394491 is an apocalyptic number.

76394491 is a deficient number, since it is larger than the sum of its proper divisors (1).

76394491 is an equidigital number, since it uses as much as digits as its factorization.

76394491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 76394491 is about 8740.3942130776. The cubic root of 76394491 is about 424.3139862309.

The spelling of 76394491 in words is "seventy-six million, three hundred ninety-four thousand, four hundred ninety-one".