401734087 has 2 divisors, whose sum is σ = 401734088. Its totient is φ = 401734086.

The previous prime is 401734063. The next prime is 401734139. The reversal of 401734087 is 780437104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401734087 - 2¹¹ = 401732039 is a prime.

It is a super-2 number, since 2×401734087² = 322780553315447138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401734007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200867043 + 200867044.

It is an arithmetic number, because the mean of its divisors is an integer number (200867044).

Almost surely, 2^401734087 is an apocalyptic number.

401734087 is a deficient number, since it is larger than the sum of its proper divisors (1).

401734087 is an equidigital number, since it uses as much as digits as its factorization.

401734087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 401734087 is about 20043.3052912936. The cubic root of 401734087 is about 737.8695033203.

The spelling of 401734087 in words is "four hundred one million, seven hundred thirty-four thousand, eighty-seven".