83742977 has 4 divisors (see below), whose sum is σ = 87384000. Its totient is φ = 80101956.

The previous prime is 83742959. The next prime is 83742979. The reversal of 83742977 is 77924738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83742977 - 2⁸ = 83742721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83742979) 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 3 ways as a sum of consecutive naturals, for example, 1820477 + ... + 1820522.

It is an arithmetic number, because the mean of its divisors is an integer number (21846000).

Almost surely, 2^83742977 is an apocalyptic number.

It is an amenable number.

83742977 is a deficient number, since it is larger than the sum of its proper divisors (3641023).

83742977 is a wasteful number, since it uses less digits than its factorization.

83742977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641022.

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

The square root of 83742977 is about 9151.1188933376. The cubic root of 83742977 is about 437.5047762200.

The spelling of 83742977 in words is "eighty-three million, seven hundred forty-two thousand, nine hundred seventy-seven".