65022739 has 4 divisors (see below), whose sum is σ = 68847624. Its totient is φ = 61197856.

The previous prime is 65022721. The next prime is 65022787. The reversal of 65022739 is 93722056.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65022739 - 2¹¹ = 65020691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65022239) 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, 1912417 + ... + 1912450.

It is an arithmetic number, because the mean of its divisors is an integer number (17211906).

Almost surely, 2^65022739 is an apocalyptic number.

65022739 is a deficient number, since it is larger than the sum of its proper divisors (3824885).

65022739 is a wasteful number, since it uses less digits than its factorization.

65022739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824884.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 65022739 is about 8063.6678379011. The cubic root of 65022739 is about 402.1194561788.

The spelling of 65022739 in words is "sixty-five million, twenty-two thousand, seven hundred thirty-nine".