401574647 has 2 divisors, whose sum is σ = 401574648. Its totient is φ = 401574646.

The previous prime is 401574599. The next prime is 401574673. The reversal of 401574647 is 746475104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401574647 - 2¹² = 401570551 is a prime.

It is a super-2 number, since 2×401574647² = 322524394226349218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401574647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401574247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200787323 + 200787324.

It is an arithmetic number, because the mean of its divisors is an integer number (200787324).

Almost surely, 2^401574647 is an apocalyptic number.

401574647 is a deficient number, since it is larger than the sum of its proper divisors (1).

401574647 is an equidigital number, since it uses as much as digits as its factorization.

401574647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 401574647 is about 20039.3275086765. The cubic root of 401574647 is about 737.7718753249.

The spelling of 401574647 in words is "four hundred one million, five hundred seventy-four thousand, six hundred forty-seven".