77294738 has 4 divisors (see below), whose sum is σ = 115942110. Its totient is φ = 38647368.

The previous prime is 77294713. The next prime is 77294753. The reversal of 77294738 is 83749277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55457809 + 21836929 = 7447^2 + 4673^2 .

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 77294692 and 77294701.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19323683 + ... + 19323686.

Almost surely, 2^77294738 is an apocalyptic number.

77294738 is a deficient number, since it is larger than the sum of its proper divisors (38647372).

77294738 is a wasteful number, since it uses less digits than its factorization.

77294738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38647371.

The product of its digits is 592704, while the sum is 47.

The square root of 77294738 is about 8791.7426031476. The cubic root of 77294738 is about 425.9742135787.

The spelling of 77294738 in words is "seventy-seven million, two hundred ninety-four thousand, seven hundred thirty-eight".