76642149 has 8 divisors (see below), whose sum is σ = 102257440. Its totient is φ = 51060816.

The previous prime is 76642147. The next prime is 76642183. The reversal of 76642149 is 94124667.

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 76642149 - 2¹ = 76642147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76642147) 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, 2647 + ... + 12660.

It is an arithmetic number, because the mean of its divisors is an integer number (12782180).

Almost surely, 2^76642149 is an apocalyptic number.

It is an amenable number.

76642149 is a deficient number, since it is larger than the sum of its proper divisors (25615291).

76642149 is a wasteful number, since it uses less digits than its factorization.

76642149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16979.

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

The square root of 76642149 is about 8754.5501883306. The cubic root of 76642149 is about 424.7720096662.

The spelling of 76642149 in words is "seventy-six million, six hundred forty-two thousand, one hundred forty-nine".