811724061 has 8 divisors (see below), whose sum is σ = 1139261920. Its totient is φ = 512667792.

The previous prime is 811724059. The next prime is 811724063. The reversal of 811724061 is 160427118.

811724061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (811724059) and next prime (811724063).

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

It is not a de Polignac number, because 811724061 - 2¹ = 811724059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811724063) 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, 7120330 + ... + 7120443.

It is an arithmetic number, because the mean of its divisors is an integer number (142407740).

Almost surely, 2^811724061 is an apocalyptic number.

It is an amenable number.

811724061 is a deficient number, since it is larger than the sum of its proper divisors (327537859).

811724061 is a wasteful number, since it uses less digits than its factorization.

811724061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14240795.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 811724061 is about 28490.7715058754. The cubic root of 811724061 is about 932.8306483404.

The spelling of 811724061 in words is "eight hundred eleven million, seven hundred twenty-four thousand, sixty-one".