964243997 has 8 divisors (see below), whose sum is σ = 1020692640. Its totient is φ = 909342000.

The previous prime is 964243979. The next prime is 964244009. The reversal of 964243997 is 799342469.

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 964243997 - 2¹² = 964239901 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 (964243937) 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, 385379 + ... + 387872.

It is an arithmetic number, because the mean of its divisors is an integer number (127586580).

Almost surely, 2^964243997 is an apocalyptic number.

It is an amenable number.

964243997 is a deficient number, since it is larger than the sum of its proper divisors (56448643).

964243997 is a wasteful number, since it uses less digits than its factorization.

964243997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773323.

The product of its digits is 2939328, while the sum is 53.

The square root of 964243997 is about 31052.2784510251. The cubic root of 964243997 is about 987.9363867783.

The spelling of 964243997 in words is "nine hundred sixty-four million, two hundred forty-three thousand, nine hundred ninety-seven".