918849673 has 4 divisors (see below), whose sum is σ = 1050113920. Its totient is φ = 787585428.

The previous prime is 918849653. The next prime is 918849683. The reversal of 918849673 is 376948819.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-918849673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918849653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65632113 + ... + 65632126.

It is an arithmetic number, because the mean of its divisors is an integer number (262528480).

Almost surely, 2^918849673 is an apocalyptic number.

It is an amenable number.

918849673 is a deficient number, since it is larger than the sum of its proper divisors (131264247).

918849673 is a wasteful number, since it uses less digits than its factorization.

918849673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131264246.

The product of its digits is 2612736, while the sum is 55.

The square root of 918849673 is about 30312.5332659611. The cubic root of 918849673 is about 972.1832965782.

The spelling of 918849673 in words is "nine hundred eighteen million, eight hundred forty-nine thousand, six hundred seventy-three".