402154867 has 2 divisors, whose sum is σ = 402154868. Its totient is φ = 402154866.

The previous prime is 402154859. The next prime is 402154901. The reversal of 402154867 is 768451204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402154867 - 2³ = 402154859 is a prime.

It is not a weakly prime, because it can be changed into another prime (402154367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201077433 + 201077434.

It is an arithmetic number, because the mean of its divisors is an integer number (201077434).

Almost surely, 2^402154867 is an apocalyptic number.

402154867 is a deficient number, since it is larger than the sum of its proper divisors (1).

402154867 is an equidigital number, since it uses as much as digits as its factorization.

402154867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 402154867 is about 20053.7993158404. The cubic root of 402154867 is about 738.1270305442.

The spelling of 402154867 in words is "four hundred two million, one hundred fifty-four thousand, eight hundred sixty-seven".