7936402 has 4 divisors (see below), whose sum is σ = 11904606. Its totient is φ = 3968200.

The previous prime is 7936367. The next prime is 7936421. The reversal of 7936402 is 2046397.

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

It can be written as a sum of positive squares in only one way, i.e., 7502121 + 434281 = 2739^2 + 659^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984099 + ... + 1984102.

Almost surely, 2^7936402 is an apocalyptic number.

7936402 is a deficient number, since it is larger than the sum of its proper divisors (3968204).

7936402 is a wasteful number, since it uses less digits than its factorization.

7936402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968203.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 7936402 is about 2817.1620471673. The cubic root of 7936402 is about 199.4686060193.

It can be divided in two parts, 7936 and 402, that added together give a palindrome (8338).

The spelling of 7936402 in words is "seven million, nine hundred thirty-six thousand, four hundred two".