65422749 has 32 divisors (see below), whose sum is σ = 106050816. Its totient is φ = 35020800.

The previous prime is 65422733. The next prime is 65422759. The reversal of 65422749 is 94722456.

It is not a de Polignac number, because 65422749 - 2⁴ = 65422733 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65422759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142929 + ... + 143385.

It is an arithmetic number, because the mean of its divisors is an integer number (3314088).

Almost surely, 2^65422749 is an apocalyptic number.

It is an amenable number.

65422749 is a deficient number, since it is larger than the sum of its proper divisors (40628067).

65422749 is a wasteful number, since it uses less digits than its factorization.

65422749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885.

The product of its digits is 120960, while the sum is 39.

The square root of 65422749 is about 8088.4330373689. The cubic root of 65422749 is about 402.9423635881.

The spelling of 65422749 in words is "sixty-five million, four hundred twenty-two thousand, seven hundred forty-nine".