1934987649 has 32 divisors (see below), whose sum is σ = 3003331584. Its totient is φ = 1085244480.

The previous prime is 1934987629. The next prime is 1934987669. The reversal of 1934987649 is 9467894391.

It is an interprime number because it is at equal distance from previous prime (1934987629) and next prime (1934987669).

It is not a de Polignac number, because 1934987649 - 2⁸ = 1934987393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1934987592 and 1934987601.

It is not an unprimeable number, because it can be changed into a prime (1934987629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 719862 + ... + 722544.

It is an arithmetic number, because the mean of its divisors is an integer number (93854112).

Almost surely, 2^1934987649 is an apocalyptic number.

It is an amenable number.

1934987649 is a deficient number, since it is larger than the sum of its proper divisors (1068343935).

1934987649 is a wasteful number, since it uses less digits than its factorization.

1934987649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317.

The product of its digits is 11757312, while the sum is 60.

The square root of 1934987649 is about 43988.4945070867. The cubic root of 1934987649 is about 1246.1186590814.

The spelling of 1934987649 in words is "one billion, nine hundred thirty-four million, nine hundred eighty-seven thousand, six hundred forty-nine".