1896214057 has 4 divisors (see below), whose sum is σ = 1897024336. Its totient is φ = 1895403780.

The previous prime is 1896214037. The next prime is 1896214063. The reversal of 1896214057 is 7504126981.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7504126981 = 13 ⋅577240537.

It is a cyclic number.

It is not a de Polignac number, because 1896214057 - 2⁷ = 1896213929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1896214007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401619 + ... + 406312.

It is an arithmetic number, because the mean of its divisors is an integer number (474256084).

Almost surely, 2^1896214057 is an apocalyptic number.

It is an amenable number.

1896214057 is a deficient number, since it is larger than the sum of its proper divisors (810279).

1896214057 is an equidigital number, since it uses as much as digits as its factorization.

1896214057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810278.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 1896214057 is about 43545.5400356914. The cubic root of 1896214057 is about 1237.7391288662.

The spelling of 1896214057 in words is "one billion, eight hundred ninety-six million, two hundred fourteen thousand, fifty-seven".