65401427 has 24 divisors (see below), whose sum is σ = 82985616. Its totient is φ = 51081408.

The previous prime is 65401423. The next prime is 65401433. The reversal of 65401427 is 72410456.

It is not a de Polignac number, because 65401427 - 2² = 65401423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65401427.

It is not an unprimeable number, because it can be changed into a prime (65401423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52253 + ... + 53489.

It is an arithmetic number, because the mean of its divisors is an integer number (3457734).

Almost surely, 2^65401427 is an apocalyptic number.

65401427 is a deficient number, since it is larger than the sum of its proper divisors (17584189).

65401427 is a wasteful number, since it uses less digits than its factorization.

65401427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 65401427 is about 8087.1148749106. The cubic root of 65401427 is about 402.8985843689.

The spelling of 65401427 in words is "sixty-five million, four hundred one thousand, four hundred twenty-seven".