994404761 has 4 divisors (see below), whose sum is σ = 1136462592. Its totient is φ = 852346932.

The previous prime is 994404757. The next prime is 994404781. The reversal of 994404761 is 167404499.

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.

It is a cyclic number.

It is not a de Polignac number, because 994404761 - 2² = 994404757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (994404781) 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, 71028905 + ... + 71028918.

It is an arithmetic number, because the mean of its divisors is an integer number (284115648).

Almost surely, 2^994404761 is an apocalyptic number.

It is an amenable number.

994404761 is a deficient number, since it is larger than the sum of its proper divisors (142057831).

994404761 is a wasteful number, since it uses less digits than its factorization.

994404761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142057830.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 994404761 is about 31534.1840072008. The cubic root of 994404761 is about 998.1314309578.

The spelling of 994404761 in words is "nine hundred ninety-four million, four hundred four thousand, seven hundred sixty-one".