6690958 has 4 divisors (see below), whose sum is σ = 10036440. Its totient is φ = 3345478.

The previous prime is 6690949. The next prime is 6690973. The reversal of 6690958 is 8590966.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672738 + ... + 1672741.

It is an arithmetic number, because the mean of its divisors is an integer number (2509110).

Almost surely, 2^6690958 is an apocalyptic number.

6690958 is a deficient number, since it is larger than the sum of its proper divisors (3345482).

6690958 is a wasteful number, since it uses less digits than its factorization.

6690958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345481.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6690958 is about 2586.6886167454. The cubic root of 6690958 is about 188.4355188974.

The spelling of 6690958 in words is "six million, six hundred ninety thousand, nine hundred fifty-eight".