65914378 has 4 divisors (see below), whose sum is σ = 98871570. Its totient is φ = 32957188.

The previous prime is 65914349. The next prime is 65914391. The reversal of 65914378 is 87341956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60793209 + 5121169 = 7797^2 + 2263^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16478593 + ... + 16478596.

Almost surely, 2^65914378 is an apocalyptic number.

65914378 is a deficient number, since it is larger than the sum of its proper divisors (32957192).

65914378 is a wasteful number, since it uses less digits than its factorization.

65914378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32957191.

The product of its digits is 181440, while the sum is 43.

The square root of 65914378 is about 8118.7670246165. The cubic root of 65914378 is about 403.9491693392.

The spelling of 65914378 in words is "sixty-five million, nine hundred fourteen thousand, three hundred seventy-eight".