401272087 has 4 divisors (see below), whose sum is σ = 410604040. Its totient is φ = 391940136.

The previous prime is 401272051. The next prime is 401272103. The reversal of 401272087 is 780272104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401272087 - 2¹¹ = 401270039 is a prime.

It is a super-2 number, since 2×401272087² = 322038575610671138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401272037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4665912 + ... + 4665997.

It is an arithmetic number, because the mean of its divisors is an integer number (102651010).

Almost surely, 2^401272087 is an apocalyptic number.

401272087 is a deficient number, since it is larger than the sum of its proper divisors (9331953).

401272087 is an equidigital number, since it uses as much as digits as its factorization.

401272087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331952.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 401272087 is about 20031.7769306669. The cubic root of 401272087 is about 737.5865412952.

The spelling of 401272087 in words is "four hundred one million, two hundred seventy-two thousand, eighty-seven".