65426387 has 8 divisors (see below), whose sum is σ = 74604096. Its totient is φ = 56840832.

The previous prime is 65426381. The next prime is 65426393. The reversal of 65426387 is 78362456.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65426381) and next prime (65426393).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65426387 is a prime.

It is a super-2 number, since 2×65426387² = 8561224231747538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65426381) 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, 147803 + ... + 148244.

It is an arithmetic number, because the mean of its divisors is an integer number (9325512).

Almost surely, 2^65426387 is an apocalyptic number.

65426387 is a deficient number, since it is larger than the sum of its proper divisors (9177709).

65426387 is a wasteful number, since it uses less digits than its factorization.

65426387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296077.

The product of its digits is 241920, while the sum is 41.

The square root of 65426387 is about 8088.6579232899. The cubic root of 65426387 is about 402.9498323314.

The spelling of 65426387 in words is "sixty-five million, four hundred twenty-six thousand, three hundred eighty-seven".