921874741 has 4 divisors (see below), whose sum is σ = 922336992. Its totient is φ = 921412492.

The previous prime is 921874703. The next prime is 921874747. The reversal of 921874741 is 147478129.

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, and also an emirpimes, since its reverse is a distinct semiprime: 147478129 = 31 ⋅4757359.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-921874741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921874747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228121 + ... + 232126.

It is an arithmetic number, because the mean of its divisors is an integer number (230584248).

Almost surely, 2^921874741 is an apocalyptic number.

It is an amenable number.

921874741 is a deficient number, since it is larger than the sum of its proper divisors (462251).

921874741 is a wasteful number, since it uses less digits than its factorization.

921874741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462250.

The product of its digits is 112896, while the sum is 43.

The square root of 921874741 is about 30362.3902385830. The cubic root of 921874741 is about 973.2490128238.

The spelling of 921874741 in words is "nine hundred twenty-one million, eight hundred seventy-four thousand, seven hundred forty-one".