77629057 has 8 divisors (see below), whose sum is σ = 85879872. Its totient is φ = 69577200.

The previous prime is 77628977. The next prime is 77629063. The reversal of 77629057 is 75092677.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-77629057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77629457) 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, 48918 + ... + 50479.

It is an arithmetic number, because the mean of its divisors is an integer number (10734984).

Almost surely, 2^77629057 is an apocalyptic number.

It is an amenable number.

77629057 is a deficient number, since it is larger than the sum of its proper divisors (8250815).

77629057 is a wasteful number, since it uses less digits than its factorization.

77629057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99479.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 77629057 is about 8810.7353268612. The cubic root of 77629057 is about 426.5874784543.

The spelling of 77629057 in words is "seventy-seven million, six hundred twenty-nine thousand, fifty-seven".