77053430 has 16 divisors (see below), whose sum is σ = 139212864. Its totient is φ = 30706560.

The previous prime is 77053429. The next prime is 77053439. The reversal of 77053430 is 3435077.

It is a junction number, because it is equal to n+sod(n) for n = 77053393 and 77053402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77053439) 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, 11507 + ... + 16926.

It is an arithmetic number, because the mean of its divisors is an integer number (8700804).

Almost surely, 2^77053430 is an apocalyptic number.

77053430 is a deficient number, since it is larger than the sum of its proper divisors (62159434).

77053430 is a wasteful number, since it uses less digits than its factorization.

77053430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28711.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 77053430 is about 8778.0083162412. The cubic root of 77053430 is about 425.5304656491.

The spelling of 77053430 in words is "seventy-seven million, fifty-three thousand, four hundred thirty".