95721977 has 4 divisors (see below), whose sum is σ = 103085220. Its totient is φ = 88358736.

The previous prime is 95721959. The next prime is 95721979. The reversal of 95721977 is 77912759.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77912759 = 67 ⋅1162877.

It can be written as a sum of positive squares in 2 ways, for example, as 8934121 + 86787856 = 2989^2 + 9316^2 .

It is a cyclic number.

It is not a de Polignac number, because 95721977 - 2¹⁰ = 95720953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (95721979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3681602 + ... + 3681627.

It is an arithmetic number, because the mean of its divisors is an integer number (25771305).

Almost surely, 2^95721977 is an apocalyptic number.

It is an amenable number.

95721977 is a deficient number, since it is larger than the sum of its proper divisors (7363243).

95721977 is a wasteful number, since it uses less digits than its factorization.

95721977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363242.

The product of its digits is 277830, while the sum is 47.

The square root of 95721977 is about 9783.7608821966. The cubic root of 95721977 is about 457.4432461674.

The spelling of 95721977 in words is "ninety-five million, seven hundred twenty-one thousand, nine hundred seventy-seven".