80921741 has 16 divisors (see below), whose sum is σ = 88515840. Its totient is φ = 73716480.

The previous prime is 80921723. The next prime is 80921759. The reversal of 80921741 is 14712908.

It is an interprime number because it is at equal distance from previous prime (80921723) and next prime (80921759).

It is a cyclic number.

It is not a de Polignac number, because 80921741 - 2⁶ = 80921677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80921698 and 80921707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80921761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56156 + ... + 57578.

It is an arithmetic number, because the mean of its divisors is an integer number (5532240).

Almost surely, 2^80921741 is an apocalyptic number.

It is an amenable number.

80921741 is a deficient number, since it is larger than the sum of its proper divisors (7594099).

80921741 is a wasteful number, since it uses less digits than its factorization.

80921741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 80921741 is about 8995.6512271208. The cubic root of 80921741 is about 432.5354817360.

The spelling of 80921741 in words is "eighty million, nine hundred twenty-one thousand, seven hundred forty-one".