77000434 has 16 divisors (see below), whose sum is σ = 133214400. Its totient is φ = 32696784.

The previous prime is 77000411. The next prime is 77000437. The reversal of 77000434 is 43400077.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77000399 and 77000408.

It is not an unprimeable number, because it can be changed into a prime (77000437) 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, 23704 + ... + 26755.

It is an arithmetic number, because the mean of its divisors is an integer number (8325900).

Almost surely, 2^77000434 is an apocalyptic number.

77000434 is a deficient number, since it is larger than the sum of its proper divisors (56213966).

77000434 is a wasteful number, since it uses less digits than its factorization.

77000434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50577.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 77000434 is about 8774.9891168024. The cubic root of 77000434 is about 425.4328858066.

The spelling of 77000434 in words is "seventy-seven million, four hundred thirty-four", and thus it is an aban number.