77041389 has 8 divisors (see below), whose sum is σ = 102781152. Its totient is φ = 51331280.

The previous prime is 77041387. The next prime is 77041439. The reversal of 77041389 is 98314077.

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 77041389 - 2¹ = 77041387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77041387) 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, 402 + ... + 12419.

It is an arithmetic number, because the mean of its divisors is an integer number (12847644).

Almost surely, 2^77041389 is an apocalyptic number.

It is an amenable number.

77041389 is a deficient number, since it is larger than the sum of its proper divisors (25739763).

77041389 is a wasteful number, since it uses less digits than its factorization.

77041389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14827.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 77041389 is about 8777.3224277111. The cubic root of 77041389 is about 425.5082988693.

The spelling of 77041389 in words is "seventy-seven million, forty-one thousand, three hundred eighty-nine".