402200993 has 2 divisors, whose sum is σ = 402200994. Its totient is φ = 402200992.

The previous prime is 402200969. The next prime is 402201031. The reversal of 402200993 is 399002204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266897569 + 135303424 = 16337^2 + 11632^2 .

It is a cyclic number.

It is not a de Polignac number, because 402200993 - 2⁸ = 402200737 is a prime.

It is not a weakly prime, because it can be changed into another prime (402202993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201100496 + 201100497.

It is an arithmetic number, because the mean of its divisors is an integer number (201100497).

Almost surely, 2^402200993 is an apocalyptic number.

It is an amenable number.

402200993 is a deficient number, since it is larger than the sum of its proper divisors (1).

402200993 is an equidigital number, since it uses as much as digits as its factorization.

402200993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 402200993 is about 20054.9493392529. The cubic root of 402200993 is about 738.1552498105.

The spelling of 402200993 in words is "four hundred two million, two hundred thousand, nine hundred ninety-three".