7085621 has 4 divisors (see below), whose sum is σ = 7100544. Its totient is φ = 7070700.

The previous prime is 7085581. The next prime is 7085629. The reversal of 7085621 is 1265807.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1265807 = 37 ⋅34211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7085621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7085629) 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, 6725 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (1775136).

Almost surely, 2^7085621 is an apocalyptic number.

It is an amenable number.

7085621 is a deficient number, since it is larger than the sum of its proper divisors (14923).

7085621 is a wasteful number, since it uses less digits than its factorization.

7085621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14922.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 7085621 is about 2661.8829801477. The cubic root of 7085621 is about 192.0698982337.

The spelling of 7085621 in words is "seven million, eighty-five thousand, six hundred twenty-one".