77489414 has 4 divisors (see below), whose sum is σ = 116234124. Its totient is φ = 38744706.

The previous prime is 77489413. The next prime is 77489437. The reversal of 77489414 is 41498477.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77489413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19372352 + ... + 19372355.

It is an arithmetic number, because the mean of its divisors is an integer number (29058531).

Almost surely, 2^77489414 is an apocalyptic number.

77489414 is a deficient number, since it is larger than the sum of its proper divisors (38744710).

77489414 is a wasteful number, since it uses less digits than its factorization.

77489414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38744709.

The product of its digits is 225792, while the sum is 44.

The square root of 77489414 is about 8802.8071658988. The cubic root of 77489414 is about 426.3315360171.

The spelling of 77489414 in words is "seventy-seven million, four hundred eighty-nine thousand, four hundred fourteen".