3952623 has 4 divisors (see below), whose sum is σ = 5270168. Its totient is φ = 2635080.

The previous prime is 3952601. The next prime is 3952633. The reversal of 3952623 is 3262593.

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

It is not a de Polignac number, because 3952623 - 2⁹ = 3952111 is a prime.

It is a D-number.

It is a Duffinian number.

3952623 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3952633) 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, 658768 + ... + 658773.

It is an arithmetic number, because the mean of its divisors is an integer number (1317542).

Almost surely, 2^3952623 is an apocalyptic number.

3952623 is a deficient number, since it is larger than the sum of its proper divisors (1317545).

3952623 is a wasteful number, since it uses less digits than its factorization.

3952623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317544.

The product of its digits is 9720, while the sum is 30.

The square root of 3952623 is about 1988.1204691869. The cubic root of 3952623 is about 158.1108952825.

Subtracting from 3952623 its sum of digits (30), we obtain a palindrome (3952593).

The spelling of 3952623 in words is "three million, nine hundred fifty-two thousand, six hundred twenty-three".