216413701 has 4 divisors (see below), whose sum is σ = 247329952. Its totient is φ = 185497452.

The previous prime is 216413699. The next prime is 216413707. The reversal of 216413701 is 107314612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 216413701 - 2¹ = 216413699 is a prime.

It is a super-3 number, since 3×216413701³ (a number of 26 digits) contains 333 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 (216413707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15458115 + ... + 15458128.

It is an arithmetic number, because the mean of its divisors is an integer number (61832488).

Almost surely, 2^216413701 is an apocalyptic number.

It is an amenable number.

216413701 is a deficient number, since it is larger than the sum of its proper divisors (30916251).

216413701 is an equidigital number, since it uses as much as digits as its factorization.

216413701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30916250.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 216413701 is about 14711.0061178697. The cubic root of 216413701 is about 600.3828121876.

The spelling of 216413701 in words is "two hundred sixteen million, four hundred thirteen thousand, seven hundred one".