7280023 has 4 divisors (see below), whose sum is σ = 7293880. Its totient is φ = 7266168.

The previous prime is 7280011. The next prime is 7280033. The reversal of 7280023 is 3200827.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7280023 - 2¹⁷ = 7148951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7279976 and 7280003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7280033) 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, 6108 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (1823470).

Almost surely, 2^7280023 is an apocalyptic number.

7280023 is a deficient number, since it is larger than the sum of its proper divisors (13857).

7280023 is a wasteful number, since it uses less digits than its factorization.

7280023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13856.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 7280023 is about 2698.1517748266. The cubic root of 7280023 is about 193.8106257728.

The spelling of 7280023 in words is "seven million, two hundred eighty thousand, twenty-three".