401293847 has 2 divisors, whose sum is σ = 401293848. Its totient is φ = 401293846.

The previous prime is 401293831. The next prime is 401293861. The reversal of 401293847 is 748392104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401293847 - 2⁴ = 401293831 is a prime.

It is a super-2 number, since 2×401293847² = 322073503280118818, 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 401293847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401293817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200646923 + 200646924.

It is an arithmetic number, because the mean of its divisors is an integer number (200646924).

Almost surely, 2^401293847 is an apocalyptic number.

401293847 is a deficient number, since it is larger than the sum of its proper divisors (1).

401293847 is an equidigital number, since it uses as much as digits as its factorization.

401293847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 401293847 is about 20032.3200603425. The cubic root of 401293847 is about 737.5998735566.

The spelling of 401293847 in words is "four hundred one million, two hundred ninety-three thousand, eight hundred forty-seven".