916672749 has 8 divisors (see below), whose sum is σ = 1222401600. Its totient is φ = 611029536.

The previous prime is 916672747. The next prime is 916672769. The reversal of 916672749 is 947276619.

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

It is not a de Polignac number, because 916672749 - 2¹ = 916672747 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916672747) 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, 10264 + ... + 44030.

It is an arithmetic number, because the mean of its divisors is an integer number (152800200).

Almost surely, 2^916672749 is an apocalyptic number.

It is an amenable number.

916672749 is a deficient number, since it is larger than the sum of its proper divisors (305728851).

916672749 is a wasteful number, since it uses less digits than its factorization.

916672749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42819.

The product of its digits is 1143072, while the sum is 51.

The square root of 916672749 is about 30276.6039872374. The cubic root of 916672749 is about 971.4149290667.

The spelling of 916672749 in words is "nine hundred sixteen million, six hundred seventy-two thousand, seven hundred forty-nine".