7400023 has 2 divisors, whose sum is σ = 7400024. Its totient is φ = 7400022.

The previous prime is 7400021. The next prime is 7400051. The reversal of 7400023 is 3200047.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7400023 - 2¹ = 7400021 is a prime.

It is a super-3 number, since 3×7400023³ (a number of 22 digits) contains 333 as substring.

Together with 7400021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7400021) 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 as a sum of consecutive naturals, namely, 3700011 + 3700012.

It is an arithmetic number, because the mean of its divisors is an integer number (3700012).

Almost surely, 2^7400023 is an apocalyptic number.

7400023 is a deficient number, since it is larger than the sum of its proper divisors (1).

7400023 is an equidigital number, since it uses as much as digits as its factorization.

7400023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 7400023 is about 2720.2983292279. The cubic root of 7400023 is about 194.8697179291.

It can be divided in two parts, 7 and 400023, that multiplied together give a triangular number (2800161 = T₂₃₆₆).

The spelling of 7400023 in words is "seven million, four hundred thousand, twenty-three".