402023207 has 2 divisors, whose sum is σ = 402023208. Its totient is φ = 402023206.

The previous prime is 402023197. The next prime is 402023213. The reversal of 402023207 is 702320204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402023207 - 2¹⁴ = 402006823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402023257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201011603 + 201011604.

It is an arithmetic number, because the mean of its divisors is an integer number (201011604).

Almost surely, 2^402023207 is an apocalyptic number.

402023207 is a deficient number, since it is larger than the sum of its proper divisors (1).

402023207 is an equidigital number, since it uses as much as digits as its factorization.

402023207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 402023207 is about 20050.5163773904. The cubic root of 402023207 is about 738.0464708560.

The spelling of 402023207 in words is "four hundred two million, twenty-three thousand, two hundred seven".