992989417 has 8 divisors (see below), whose sum is σ = 1135042112. Its totient is φ = 850986000.

The previous prime is 992989409. The next prime is 992989429. The reversal of 992989417 is 714989299.

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 992989417 - 2³ = 992989409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (992989447) 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, 56542 + ... + 71992.

It is an arithmetic number, because the mean of its divisors is an integer number (141880264).

Almost surely, 2^992989417 is an apocalyptic number.

It is an amenable number.

992989417 is a deficient number, since it is larger than the sum of its proper divisors (142052695).

992989417 is a wasteful number, since it uses less digits than its factorization.

992989417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24639.

The product of its digits is 2939328, while the sum is 58.

The square root of 992989417 is about 31511.7345920532. The cubic root of 992989417 is about 997.6576567117.

The spelling of 992989417 in words is "nine hundred ninety-two million, nine hundred eighty-nine thousand, four hundred seventeen".