76426491 has 8 divisors (see below), whose sum is σ = 101969920. Its totient is φ = 50917032.

The previous prime is 76426489. The next prime is 76426507. The reversal of 76426491 is 19462467.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76426491 - 2¹ = 76426489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76426411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671 + ... + 12648.

It is an arithmetic number, because the mean of its divisors is an integer number (12746240).

Almost surely, 2^76426491 is an apocalyptic number.

76426491 is a deficient number, since it is larger than the sum of its proper divisors (25543429).

76426491 is a wasteful number, since it uses less digits than its factorization.

76426491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16985.

The product of its digits is 72576, while the sum is 39.

The square root of 76426491 is about 8742.2246024682. The cubic root of 76426491 is about 424.3732232778.

The spelling of 76426491 in words is "seventy-six million, four hundred twenty-six thousand, four hundred ninety-one".