77073489 has 12 divisors (see below), whose sum is σ = 111458256. Its totient is φ = 51322392.

The previous prime is 77073431. The next prime is 77073499. The reversal of 77073489 is 98437077.

It is not a de Polignac number, because 77073489 - 2⁷ = 77073361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77073419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4002 + ... + 13044.

It is an arithmetic number, because the mean of its divisors is an integer number (9288188).

Almost surely, 2^77073489 is an apocalyptic number.

It is an amenable number.

77073489 is a deficient number, since it is larger than the sum of its proper divisors (34384767).

77073489 is a wasteful number, since it uses less digits than its factorization.

77073489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9996 (or 9993 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 77073489 is about 8779.1508131482. The cubic root of 77073489 is about 425.5673879727.

The spelling of 77073489 in words is "seventy-seven million, seventy-three thousand, four hundred eighty-nine".