77245534 has 16 divisors (see below), whose sum is σ = 119965248. Its totient is φ = 37279872.

The previous prime is 77245499. The next prime is 77245541. The reversal of 77245534 is 43554277.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77245493 and 77245502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (7497828).

Almost surely, 2^77245534 is an apocalyptic number.

77245534 is a deficient number, since it is larger than the sum of its proper divisors (42719714).

77245534 is a wasteful number, since it uses less digits than its factorization.

77245534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11379.

The product of its digits is 117600, while the sum is 37.

The square root of 77245534 is about 8788.9438500880. The cubic root of 77245534 is about 425.8838060262.

The spelling of 77245534 in words is "seventy-seven million, two hundred forty-five thousand, five hundred thirty-four".