997677433 has 8 divisors (see below), whose sum is σ = 1047317760. Its totient is φ = 949128240.

The previous prime is 997677431. The next prime is 997677437. The reversal of 997677433 is 334776799.

It is a happy number.

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

It is not a de Polignac number, because 997677433 - 2¹ = 997677431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997677431) 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, 270910 + ... + 274567.

It is an arithmetic number, because the mean of its divisors is an integer number (130914720).

Almost surely, 2^997677433 is an apocalyptic number.

It is an amenable number.

997677433 is a deficient number, since it is larger than the sum of its proper divisors (49640327).

997677433 is a wasteful number, since it uses less digits than its factorization.

997677433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545567.

The product of its digits is 6001128, while the sum is 55.

The square root of 997677433 is about 31586.0322452821. The cubic root of 997677433 is about 999.2252108568.

The spelling of 997677433 in words is "nine hundred ninety-seven million, six hundred seventy-seven thousand, four hundred thirty-three".