65387397 has 8 divisors (see below), whose sum is σ = 87545920. Its totient is φ = 43410240.

The previous prime is 65387381. The next prime is 65387411. The reversal of 65387397 is 79378356.

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

It is not a de Polignac number, because 65387397 - 2⁴ = 65387381 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 (65387327) 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, 44497 + ... + 45942.

It is an arithmetic number, because the mean of its divisors is an integer number (10943240).

Almost surely, 2^65387397 is an apocalyptic number.

It is an amenable number.

65387397 is a deficient number, since it is larger than the sum of its proper divisors (22158523).

65387397 is a wasteful number, since it uses less digits than its factorization.

65387397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90683.

The product of its digits is 952560, while the sum is 48.

The square root of 65387397 is about 8086.2473991339. The cubic root of 65387397 is about 402.8697721974.

It can be divided in two parts, 6 and 5387397, that added together give a triangular number (5387403 = T₃₂₈₂).

The spelling of 65387397 in words is "sixty-five million, three hundred eighty-seven thousand, three hundred ninety-seven".