65274977 has 4 divisors (see below), whose sum is σ = 65873940. Its totient is φ = 64676016.

The previous prime is 65274949. The next prime is 65274997. The reversal of 65274977 is 77947256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31181056 + 34093921 = 5584^2 + 5839^2 .

It is a cyclic number.

It is not a de Polignac number, because 65274977 - 2¹⁰ = 65273953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65274907) 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, 299318 + ... + 299535.

It is an arithmetic number, because the mean of its divisors is an integer number (16468485).

Almost surely, 2^65274977 is an apocalyptic number.

It is an amenable number.

65274977 is a deficient number, since it is larger than the sum of its proper divisors (598963).

65274977 is a wasteful number, since it uses less digits than its factorization.

65274977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598962.

The product of its digits is 740880, while the sum is 47.

The square root of 65274977 is about 8079.2931002656. The cubic root of 65274977 is about 402.6387562187.

The spelling of 65274977 in words is "sixty-five million, two hundred seventy-four thousand, nine hundred seventy-seven".