77283997 has 8 divisors (see below), whose sum is σ = 89569152. Its totient is φ = 65310000.

The previous prime is 77283991. The next prime is 77284013. The reversal of 77283997 is 79938277.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-77283997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77283991) 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 7 ways as a sum of consecutive naturals, for example, 77254 + ... + 78247.

It is an arithmetic number, because the mean of its divisors is an integer number (11196144).

Almost surely, 2^77283997 is an apocalyptic number.

It is an amenable number.

77283997 is a deficient number, since it is larger than the sum of its proper divisors (12285155).

77283997 is a wasteful number, since it uses less digits than its factorization.

77283997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155579.

The product of its digits is 1333584, while the sum is 52.

The square root of 77283997 is about 8791.1317246416. The cubic root of 77283997 is about 425.9544813128.

The spelling of 77283997 in words is "seventy-seven million, two hundred eighty-three thousand, nine hundred ninety-seven".