76841649 has 32 divisors (see below), whose sum is σ = 122048640. Its totient is φ = 47609856.

The previous prime is 76841647. The next prime is 76841651. The reversal of 76841649 is 94614867.

It is an interprime number because it is at equal distance from previous prime (76841647) and next prime (76841651).

It is not a de Polignac number, because 76841649 - 2¹ = 76841647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76841647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37089 + ... + 39105.

It is an arithmetic number, because the mean of its divisors is an integer number (3814020).

Almost surely, 2^76841649 is an apocalyptic number.

It is an amenable number.

76841649 is a deficient number, since it is larger than the sum of its proper divisors (45206991).

76841649 is a wasteful number, since it uses less digits than its factorization.

76841649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2120 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 76841649 is about 8765.9368580888. The cubic root of 76841649 is about 425.1402517505.

The spelling of 76841649 in words is "seventy-six million, eight hundred forty-one thousand, six hundred forty-nine".