77051229 has 8 divisors (see below), whose sum is σ = 102857472. Its totient is φ = 51306240.

The previous prime is 77051209. The next prime is 77051237. The reversal of 77051229 is 92215077.

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

It is not a de Polignac number, because 77051229 - 2¹³ = 77043037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77051229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77051209) 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, 12292 + ... + 17469.

It is an arithmetic number, because the mean of its divisors is an integer number (12857184).

Almost surely, 2^77051229 is an apocalyptic number.

It is an amenable number.

77051229 is a deficient number, since it is larger than the sum of its proper divisors (25806243).

77051229 is a wasteful number, since it uses less digits than its factorization.

77051229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30627.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 77051229 is about 8777.8829452209. The cubic root of 77051229 is about 425.5264139088.

The spelling of 77051229 in words is "seventy-seven million, fifty-one thousand, two hundred twenty-nine".