994920641 has 16 divisors (see below), whose sum is σ = 1171050048. Its totient is φ = 833332800.

The previous prime is 994920629. The next prime is 994920643. The reversal of 994920641 is 146029499.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994920641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 994920592 and 994920601.

It is not an unprimeable number, because it can be changed into a prime (994920643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73406 + ... + 85896.

It is an arithmetic number, because the mean of its divisors is an integer number (73190628).

Almost surely, 2^994920641 is an apocalyptic number.

It is an amenable number.

994920641 is a deficient number, since it is larger than the sum of its proper divisors (176129407).

994920641 is a wasteful number, since it uses less digits than its factorization.

994920641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 994920641 is about 31542.3626413749. The cubic root of 994920641 is about 998.3040055623.

The spelling of 994920641 in words is "nine hundred ninety-four million, nine hundred twenty thousand, six hundred forty-one".