77377946 has 8 divisors (see below), whose sum is σ = 116668884. Its totient is φ = 38488320.

The previous prime is 77377943. The next prime is 77377961. The reversal of 77377946 is 64977377.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77352025 + 25921 = 8795^2 + 161^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 77377894 and 77377903.

It is not an unprimeable number, because it can be changed into a prime (77377943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99845 + ... + 100616.

Almost surely, 2^77377946 is an apocalyptic number.

77377946 is a deficient number, since it is larger than the sum of its proper divisors (39290938).

77377946 is a wasteful number, since it uses less digits than its factorization.

77377946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200656.

The product of its digits is 1555848, while the sum is 50.

The square root of 77377946 is about 8796.4734979422. The cubic root of 77377946 is about 426.1270129033.

The spelling of 77377946 in words is "seventy-seven million, three hundred seventy-seven thousand, nine hundred forty-six".