7951406 has 4 divisors (see below), whose sum is σ = 11927112. Its totient is φ = 3975702.

The previous prime is 7951403. The next prime is 7951453. The reversal of 7951406 is 6041597.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7951403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987850 + ... + 1987853.

It is an arithmetic number, because the mean of its divisors is an integer number (2981778).

Almost surely, 2^7951406 is an apocalyptic number.

7951406 is a deficient number, since it is larger than the sum of its proper divisors (3975706).

7951406 is a wasteful number, since it uses less digits than its factorization.

7951406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975705.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 7951406 is about 2819.8237533576. The cubic root of 7951406 is about 199.5942272993.

The spelling of 7951406 in words is "seven million, nine hundred fifty-one thousand, four hundred six".