7028661 has 8 divisors (see below), whose sum is σ = 9673984. Its totient is φ = 4534560.

The previous prime is 7028657. The next prime is 7028663. The reversal of 7028661 is 1668207.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7028661 - 2² = 7028657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7028663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37696 + ... + 37881.

It is an arithmetic number, because the mean of its divisors is an integer number (1209248).

Almost surely, 2^7028661 is an apocalyptic number.

It is an amenable number.

7028661 is a deficient number, since it is larger than the sum of its proper divisors (2645323).

7028661 is a wasteful number, since it uses less digits than its factorization.

7028661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75611.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7028661 is about 2651.1621979803. The cubic root of 7028661 is about 191.5538414326.

The spelling of 7028661 in words is "seven million, twenty-eight thousand, six hundred sixty-one".