77248867 has 16 divisors (see below), whose sum is σ = 83408832. Its totient is φ = 71285760.

The previous prime is 77248861. The next prime is 77248883. The reversal of 77248867 is 76884277.

It is a happy number.

It is not a de Polignac number, because 77248867 - 2¹⁵ = 77216099 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 77248867.

It is not an unprimeable number, because it can be changed into a prime (77248861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274767 + ... + 275047.

It is an arithmetic number, because the mean of its divisors is an integer number (5213052).

Almost surely, 2^77248867 is an apocalyptic number.

77248867 is a deficient number, since it is larger than the sum of its proper divisors (6159965).

77248867 is a wasteful number, since it uses less digits than its factorization.

77248867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its digits is 1053696, while the sum is 49.

The square root of 77248867 is about 8789.1334612691. The cubic root of 77248867 is about 425.8899313008.

The spelling of 77248867 in words is "seventy-seven million, two hundred forty-eight thousand, eight hundred sixty-seven".