946909661 has 8 divisors (see below), whose sum is σ = 981594720. Its totient is φ = 912703248.

The previous prime is 946909657. The next prime is 946909687. The reversal of 946909661 is 166909649.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 946909661 - 2² = 946909657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946909361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115631 + ... + 123548.

It is an arithmetic number, because the mean of its divisors is an integer number (122699340).

Almost surely, 2^946909661 is an apocalyptic number.

It is an amenable number.

946909661 is a deficient number, since it is larger than the sum of its proper divisors (34685059).

946909661 is a wasteful number, since it uses less digits than its factorization.

946909661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239323.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 946909661 is about 30771.8972603250. The cubic root of 946909661 is about 981.9804671030.

The spelling of 946909661 in words is "nine hundred forty-six million, nine hundred nine thousand, six hundred sixty-one".