77429013 has 4 divisors (see below), whose sum is σ = 103238688. Its totient is φ = 51619340.

The previous prime is 77429003. The next prime is 77429029. The reversal of 77429013 is 31092477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77429013 - 2⁴ = 77428997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77429003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12904833 + ... + 12904838.

It is an arithmetic number, because the mean of its divisors is an integer number (25809672).

Almost surely, 2^77429013 is an apocalyptic number.

It is an amenable number.

77429013 is a deficient number, since it is larger than the sum of its proper divisors (25809675).

77429013 is a wasteful number, since it uses less digits than its factorization.

77429013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25809674.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 77429013 is about 8799.3757164926. The cubic root of 77429013 is about 426.2207357440.

The spelling of 77429013 in words is "seventy-seven million, four hundred twenty-nine thousand, thirteen".