4072923 has 28 divisors (see below), whose sum is σ = 6313168. Its totient is φ = 2624400.

The previous prime is 4072919. The next prime is 4072927. The reversal of 4072923 is 3292704.

It is an interprime number because it is at equal distance from previous prime (4072919) and next prime (4072927).

It is not a de Polignac number, because 4072923 - 2² = 4072919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072927) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 26898 + ... + 27048.

Almost surely, 2^4072923 is an apocalyptic number.

4072923 is a deficient number, since it is larger than the sum of its proper divisors (2240245).

4072923 is an equidigital number, since it uses as much as digits as its factorization.

4072923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 4072923 is about 2018.1484088144. The cubic root of 4072923 is about 159.6989521481.

The spelling of 4072923 in words is "four million, seventy-two thousand, nine hundred twenty-three".