77248434 has 16 divisors (see below), whose sum is σ = 154785888. Its totient is φ = 25701312.

The previous prime is 77248403. The next prime is 77248439. The reversal of 77248434 is 43484277.

It is a junction number, because it is equal to n+sod(n) for n = 77248392 and 77248401.

It is not an unprimeable number, because it can be changed into a prime (77248439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8487 + ... + 15050.

It is an arithmetic number, because the mean of its divisors is an integer number (9674118).

Almost surely, 2^77248434 is an apocalyptic number.

77248434 is an abundant number, since it is smaller than the sum of its proper divisors (77537454).

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

77248434 is a wasteful number, since it uses less digits than its factorization.

77248434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24089.

The product of its digits is 150528, while the sum is 39.

The square root of 77248434 is about 8789.1088285446. The cubic root of 77248434 is about 425.8891355580.

The spelling of 77248434 in words is "seventy-seven million, two hundred forty-eight thousand, four hundred thirty-four".