7621023 has 4 divisors (see below), whose sum is σ = 10161368. Its totient is φ = 5080680.

The previous prime is 7620979. The next prime is 7621037. The reversal of 7621023 is 3201267.

It is a happy number.

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

It is not a de Polignac number, because 7621023 - 2⁶ = 7620959 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 (7621043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270168 + ... + 1270173.

It is an arithmetic number, because the mean of its divisors is an integer number (2540342).

Almost surely, 2^7621023 is an apocalyptic number.

7621023 is a deficient number, since it is larger than the sum of its proper divisors (2540345).

7621023 is a wasteful number, since it uses less digits than its factorization.

7621023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540344.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 7621023 is about 2760.6200390492. The cubic root of 7621023 is about 196.7906336427.

The spelling of 7621023 in words is "seven million, six hundred twenty-one thousand, twenty-three".