77009734 has 4 divisors (see below), whose sum is σ = 115514604. Its totient is φ = 38504866.

The previous prime is 77009707. The next prime is 77009749. The reversal of 77009734 is 43790077.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 77009693 and 77009702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19252432 + ... + 19252435.

It is an arithmetic number, because the mean of its divisors is an integer number (28878651).

Almost surely, 2^77009734 is an apocalyptic number.

77009734 is a deficient number, since it is larger than the sum of its proper divisors (38504870).

77009734 is a wasteful number, since it uses less digits than its factorization.

77009734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38504869.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 77009734 is about 8775.5190159899. The cubic root of 77009734 is about 425.4500128381.

The spelling of 77009734 in words is "seventy-seven million, nine thousand, seven hundred thirty-four".