65401397 has 8 divisors (see below), whose sum is σ = 72259776. Its totient is φ = 58877632.

The previous prime is 65401367. The next prime is 65401423. The reversal of 65401397 is 79310456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65401397 - 2¹² = 65397301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65401327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83243 + ... + 84024.

It is an arithmetic number, because the mean of its divisors is an integer number (9032472).

Almost surely, 2^65401397 is an apocalyptic number.

It is an amenable number.

65401397 is a deficient number, since it is larger than the sum of its proper divisors (6858379).

65401397 is a wasteful number, since it uses less digits than its factorization.

65401397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167307.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 65401397 is about 8087.1130201080. The cubic root of 65401397 is about 402.8985227650.

The spelling of 65401397 in words is "sixty-five million, four hundred one thousand, three hundred ninety-seven".