3854421497 has 2 divisors, whose sum is σ = 3854421498. Its totient is φ = 3854421496.

The previous prime is 3854421481. The next prime is 3854421503. The reversal of 3854421497 is 7941244583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2219917456 + 1634504041 = 47116^2 + 40429^2 .

It is a cyclic number.

It is not a de Polignac number, because 3854421497 - 2⁴ = 3854421481 is a prime.

It is not a weakly prime, because it can be changed into another prime (3854421437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927210748 + 1927210749.

It is an arithmetic number, because the mean of its divisors is an integer number (1927210749).

Almost surely, 2^3854421497 is an apocalyptic number.

It is an amenable number.

3854421497 is a deficient number, since it is larger than the sum of its proper divisors (1).

3854421497 is an equidigital number, since it uses as much as digits as its factorization.

3854421497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The square root of 3854421497 is about 62083.9874444289. The cubic root of 3854421497 is about 1567.9049634422.

The spelling of 3854421497 in words is "three billion, eight hundred fifty-four million, four hundred twenty-one thousand, four hundred ninety-seven".