77770351 has 8 divisors (see below), whose sum is σ = 80438400. Its totient is φ = 75112320.

The previous prime is 77770349. The next prime is 77770367. The reversal of 77770351 is 15307777.

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

It is a cyclic number.

It is not a de Polignac number, because 77770351 - 2¹ = 77770349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77770351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77770051) 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, 15435 + ... + 19843.

It is an arithmetic number, because the mean of its divisors is an integer number (10054800).

Almost surely, 2^77770351 is an apocalyptic number.

77770351 is a deficient number, since it is larger than the sum of its proper divisors (2668049).

77770351 is a wasteful number, since it uses less digits than its factorization.

77770351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009.

The product of its (nonzero) digits is 36015, while the sum is 37.

The square root of 77770351 is about 8818.7499681077. The cubic root of 77770351 is about 426.8461346916.

The spelling of 77770351 in words is "seventy-seven million, seven hundred seventy thousand, three hundred fifty-one".