401261347 has 2 divisors, whose sum is σ = 401261348. Its totient is φ = 401261346.

The previous prime is 401261339. The next prime is 401261351. The reversal of 401261347 is 743162104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401261347 - 2³ = 401261339 is a prime.

It is a super-2 number, since 2×401261347² = 322021337192508818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401261327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200630673 + 200630674.

It is an arithmetic number, because the mean of its divisors is an integer number (200630674).

Almost surely, 2^401261347 is an apocalyptic number.

401261347 is a deficient number, since it is larger than the sum of its proper divisors (1).

401261347 is an equidigital number, since it uses as much as digits as its factorization.

401261347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 401261347 is about 20031.5088548017. The cubic root of 401261347 is about 737.5799607643.

The spelling of 401261347 in words is "four hundred one million, two hundred sixty-one thousand, three hundred forty-seven".