65734431 has 12 divisors (see below), whose sum is σ = 101955672. Its totient is φ = 37562448.

The previous prime is 65734411. The next prime is 65734457. The reversal of 65734431 is 13443756.

It is not a de Polignac number, because 65734431 - 2¹⁵ = 65701663 is a prime.

It is a super-2 number, since 2×65734431² = 8642030837787522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65734392 and 65734401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65734411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223440 + ... + 223733.

It is an arithmetic number, because the mean of its divisors is an integer number (8496306).

Almost surely, 2^65734431 is an apocalyptic number.

65734431 is a deficient number, since it is larger than the sum of its proper divisors (36221241).

65734431 is a wasteful number, since it uses less digits than its factorization.

65734431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447190 (or 447183 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 65734431 is about 8107.6772876083. The cubic root of 65734431 is about 403.5812390456.

The spelling of 65734431 in words is "sixty-five million, seven hundred thirty-four thousand, four hundred thirty-one".