994009651 has 2 divisors, whose sum is σ = 994009652. Its totient is φ = 994009650.

The previous prime is 994009603. The next prime is 994009657. The reversal of 994009651 is 156900499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 994009651 - 2⁹ = 994009139 is a prime.

It is a super-2 number, since 2×994009651² = 1976110372562283602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 994009598 and 994009607.

It is not a weakly prime, because it can be changed into another prime (994009657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497004825 + 497004826.

It is an arithmetic number, because the mean of its divisors is an integer number (497004826).

Almost surely, 2^994009651 is an apocalyptic number.

994009651 is a deficient number, since it is larger than the sum of its proper divisors (1).

994009651 is an equidigital number, since it uses as much as digits as its factorization.

994009651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 994009651 is about 31527.9185960634. The cubic root of 994009651 is about 997.9992165353. Note that the first 3 decimals are identical.

The spelling of 994009651 in words is "nine hundred ninety-four million, nine thousand, six hundred fifty-one".