7961947 has 8 divisors (see below), whose sum is σ = 9393152. Its totient is φ = 6604200.

The previous prime is 7961939. The next prime is 7961951. The reversal of 7961947 is 7491697.

It is a happy number.

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 7961947 - 2³ = 7961939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7961957) 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, 18129 + ... + 18562.

It is an arithmetic number, because the mean of its divisors is an integer number (1174144).

Almost surely, 2^7961947 is an apocalyptic number.

7961947 is a deficient number, since it is larger than the sum of its proper divisors (1431205).

7961947 is a wasteful number, since it uses less digits than its factorization.

7961947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36729.

The product of its digits is 95256, while the sum is 43.

The square root of 7961947 is about 2821.6922227628. The cubic root of 7961947 is about 199.6823875453.

It can be divided in two parts, 79 and 61947, that added together give a palindrome (62026).

The spelling of 7961947 in words is "seven million, nine hundred sixty-one thousand, nine hundred forty-seven".