1974919 has 2 divisors, whose sum is σ = 1974920. Its totient is φ = 1974918.

The previous prime is 1974887. The next prime is 1974923. The reversal of 1974919 is 9194791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1974919 - 2⁵ = 1974887 is a prime.

It is a super-2 number, since 2×1974919² = 7800610113122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1974989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987459 + 987460.

It is an arithmetic number, because the mean of its divisors is an integer number (987460).

2^1974919 is an apocalyptic number.

1974919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974919 is an equidigital number, since it uses as much as digits as its factorization.

1974919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 40.

The square root of 1974919 is about 1405.3181134533. The cubic root of 1974919 is about 125.4632199644.

The spelling of 1974919 in words is "one million, nine hundred seventy-four thousand, nine hundred nineteen".