77352434 has 4 divisors (see below), whose sum is σ = 116028654. Its totient is φ = 38676216.

The previous prime is 77352433. The next prime is 77352437. The reversal of 77352434 is 43425377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43425377 = 853 ⋅50909.

It can be written as a sum of positive squares in only one way, i.e., 38875225 + 38477209 = 6235^2 + 6203^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77352394 and 77352403.

It is not an unprimeable number, because it can be changed into a prime (77352433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19338107 + ... + 19338110.

Almost surely, 2^77352434 is an apocalyptic number.

77352434 is a deficient number, since it is larger than the sum of its proper divisors (38676220).

77352434 is a wasteful number, since it uses less digits than its factorization.

77352434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38676219.

The product of its digits is 70560, while the sum is 35.

The square root of 77352434 is about 8795.0232518169. The cubic root of 77352434 is about 426.0801754949.

The spelling of 77352434 in words is "seventy-seven million, three hundred fifty-two thousand, four hundred thirty-four".