4189854797 has 2 divisors, whose sum is σ = 4189854798. Its totient is φ = 4189854796.

The previous prime is 4189854751. The next prime is 4189854827. The reversal of 4189854797 is 7974589814.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4185313636 + 4541161 = 64694^2 + 2131^2 .

It is a cyclic number.

It is not a de Polignac number, because 4189854797 - 2¹² = 4189850701 is a prime.

It is a super-2 number, since 2×4189854797² = 35109766439887822418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4189854707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2094927398 + 2094927399.

It is an arithmetic number, because the mean of its divisors is an integer number (2094927399).

Almost surely, 2^4189854797 is an apocalyptic number.

It is an amenable number.

4189854797 is a deficient number, since it is larger than the sum of its proper divisors (1).

4189854797 is an equidigital number, since it uses as much as digits as its factorization.

4189854797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 62.

The square root of 4189854797 is about 64729.0877195098. The cubic root of 4189854797 is about 1612.1285064683.

The spelling of 4189854797 in words is "four billion, one hundred eighty-nine million, eight hundred fifty-four thousand, seven hundred ninety-seven".