77243004 has 48 divisors (see below), whose sum is σ = 201025440. Its totient is φ = 25649280.

The previous prime is 77243003. The next prime is 77243009. The reversal of 77243004 is 40034277.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77243003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30424 + ... + 32864.

It is an arithmetic number, because the mean of its divisors is an integer number (4188030).

Almost surely, 2^77243004 is an apocalyptic number.

It is an amenable number.

77243004 is an abundant number, since it is smaller than the sum of its proper divisors (123782436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77243004 is a wasteful number, since it uses less digits than its factorization.

77243004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747 (or 2739 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 77243004 is about 8788.7999180776. The cubic root of 77243004 is about 425.8791563602.

The spelling of 77243004 in words is "seventy-seven million, two hundred forty-three thousand, four".