7961407 has 4 divisors (see below), whose sum is σ = 8146600. Its totient is φ = 7776216.

The previous prime is 7961363. The next prime is 7961411. The reversal of 7961407 is 7041697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7041697 = 13 ⋅541669.

It is a cyclic number.

It is not a de Polignac number, because 7961407 - 2⁷ = 7961279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7961417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92532 + ... + 92617.

It is an arithmetic number, because the mean of its divisors is an integer number (2036650).

Almost surely, 2^7961407 is an apocalyptic number.

7961407 is a deficient number, since it is larger than the sum of its proper divisors (185193).

7961407 is a wasteful number, since it uses less digits than its factorization.

7961407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185192.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 7961407 is about 2821.5965338794. The cubic root of 7961407 is about 199.6778731166.

The spelling of 7961407 in words is "seven million, nine hundred sixty-one thousand, four hundred seven".