2189700471 has 16 divisors (see below), whose sum is σ = 3341118464. Its totient is φ = 1249595424.

The previous prime is 2189700449. The next prime is 2189700473. The reversal of 2189700471 is 1740079812.

It is not a de Polignac number, because 2189700471 - 2¹³ = 2189692279 is a prime.

It is a super-3 number, since 3×2189700471³ (a number of 29 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 (2189700473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52975 + ... + 84768.

It is an arithmetic number, because the mean of its divisors is an integer number (208819904).

Almost surely, 2^2189700471 is an apocalyptic number.

2189700471 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2189700471 is a deficient number, since it is larger than the sum of its proper divisors (1151417993).

2189700471 is a wasteful number, since it uses less digits than its factorization.

2189700471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138510.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 2189700471 is about 46794.2354462598. The cubic root of 2189700471 is about 1298.5586532190.

The spelling of 2189700471 in words is "two billion, one hundred eighty-nine million, seven hundred thousand, four hundred seventy-one".