76893949 has 4 divisors (see below), whose sum is σ = 83884320. Its totient is φ = 69903580.

The previous prime is 76893913. The next prime is 76893959. The reversal of 76893949 is 94939867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76893949 - 2⁷ = 76893821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76893949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76893959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3495169 + ... + 3495190.

It is an arithmetic number, because the mean of its divisors is an integer number (20971080).

Almost surely, 2^76893949 is an apocalyptic number.

It is an amenable number.

76893949 is a deficient number, since it is larger than the sum of its proper divisors (6990371).

76893949 is a wasteful number, since it uses less digits than its factorization.

76893949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6990370.

The product of its digits is 2939328, while the sum is 55.

The square root of 76893949 is about 8768.9194887398. The cubic root of 76893949 is about 425.2366829301.

The spelling of 76893949 in words is "seventy-six million, eight hundred ninety-three thousand, nine hundred forty-nine".