7961403 has 4 divisors (see below), whose sum is σ = 10615208. Its totient is φ = 5307600.

The previous prime is 7961363. The next prime is 7961411. The reversal of 7961403 is 3041697.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3041697 = 3 ⋅1013899.

It is not a de Polignac number, because 7961403 - 2⁸ = 7961147 is a prime.

It is a Duffinian number.

7961403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7961413) 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, 1326898 + ... + 1326903.

It is an arithmetic number, because the mean of its divisors is an integer number (2653802).

Almost surely, 2^7961403 is an apocalyptic number.

7961403 is a deficient number, since it is larger than the sum of its proper divisors (2653805).

7961403 is a wasteful number, since it uses less digits than its factorization.

7961403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653804.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 7961403 is about 2821.5958250607. The cubic root of 7961403 is about 199.6778396756.

The spelling of 7961403 in words is "seven million, nine hundred sixty-one thousand, four hundred three".