401925847 has 2 divisors, whose sum is σ = 401925848. Its totient is φ = 401925846.

The previous prime is 401925841. The next prime is 401925863. The reversal of 401925847 is 748529104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401925847 - 2¹¹ = 401923799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401925841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200962923 + 200962924.

It is an arithmetic number, because the mean of its divisors is an integer number (200962924).

Almost surely, 2^401925847 is an apocalyptic number.

401925847 is a deficient number, since it is larger than the sum of its proper divisors (1).

401925847 is an equidigital number, since it uses as much as digits as its factorization.

401925847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 401925847 is about 20048.0883627342. The cubic root of 401925847 is about 737.9868872262.

The spelling of 401925847 in words is "four hundred one million, nine hundred twenty-five thousand, eight hundred forty-seven".