65907947 has 4 divisors (see below), whose sum is σ = 75323376. Its totient is φ = 56492520.

The previous prime is 65907917. The next prime is 65907973. The reversal of 65907947 is 74970956.

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

It is not a de Polignac number, because 65907947 - 2¹⁰ = 65906923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65907917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4707704 + ... + 4707717.

It is an arithmetic number, because the mean of its divisors is an integer number (18830844).

Almost surely, 2^65907947 is an apocalyptic number.

65907947 is a deficient number, since it is larger than the sum of its proper divisors (9415429).

65907947 is an equidigital number, since it uses as much as digits as its factorization.

65907947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9415428.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 65907947 is about 8118.3709572795. The cubic root of 65907947 is about 403.9360316816.

The spelling of 65907947 in words is "sixty-five million, nine hundred seven thousand, nine hundred forty-seven".