76940777 has 4 divisors (see below), whose sum is σ = 77052816. Its totient is φ = 76828740.

The previous prime is 76940761. The next prime is 76940821. The reversal of 76940777 is 77704967.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77704967 = 229 ⋅339323.

It is a cyclic number.

It is not a de Polignac number, because 76940777 - 2⁴ = 76940761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76940377) 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, 54983 + ... + 56364.

It is an arithmetic number, because the mean of its divisors is an integer number (19263204).

Almost surely, 2^76940777 is an apocalyptic number.

It is an amenable number.

76940777 is a deficient number, since it is larger than the sum of its proper divisors (112039).

76940777 is a wasteful number, since it uses less digits than its factorization.

76940777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112038.

The product of its (nonzero) digits is 518616, while the sum is 47.

The square root of 76940777 is about 8771.5891946671. The cubic root of 76940777 is about 425.3229876945.

The spelling of 76940777 in words is "seventy-six million, nine hundred forty thousand, seven hundred seventy-seven".