1952604991 has 2 divisors, whose sum is σ = 1952604992. Its totient is φ = 1952604990.

The previous prime is 1952604971. The next prime is 1952605021. The reversal of 1952604991 is 1994062591.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1952604991 is a prime.

It is a super-3 number, since 3×1952604991³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1952604971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976302495 + 976302496.

It is an arithmetic number, because the mean of its divisors is an integer number (976302496).

Almost surely, 2^1952604991 is an apocalyptic number.

1952604991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1952604991 is an equidigital number, since it uses as much as digits as its factorization.

1952604991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 1952604991 is about 44188.2902022697. The cubic root of 1952604991 is about 1249.8890548999.

The spelling of 1952604991 in words is "one billion, nine hundred fifty-two million, six hundred four thousand, nine hundred ninety-one".