6890402 has 4 divisors (see below), whose sum is σ = 10335606. Its totient is φ = 3445200.

The previous prime is 6890353. The next prime is 6890413. The reversal of 6890402 is 2040986.

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., 6806881 + 83521 = 2609^2 + 289^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722599 + ... + 1722602.

Almost surely, 2^6890402 is an apocalyptic number.

6890402 is a deficient number, since it is larger than the sum of its proper divisors (3445204).

6890402 is a wasteful number, since it uses less digits than its factorization.

6890402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445203.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6890402 is about 2624.9575234659. The cubic root of 6890402 is about 190.2895124633.

The spelling of 6890402 in words is "six million, eight hundred ninety thousand, four hundred two".