61000791 has 8 divisors (see below), whose sum is σ = 81690480. Its totient is φ = 40489152.

The previous prime is 61000787. The next prime is 61000813. The reversal of 61000791 is 19700016.

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

It is not a de Polignac number, because 61000791 - 2² = 61000787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000091) 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, 43710 + ... + 45083.

It is an arithmetic number, because the mean of its divisors is an integer number (10211310).

Almost surely, 2^61000791 is an apocalyptic number.

61000791 is a deficient number, since it is larger than the sum of its proper divisors (20689689).

61000791 is a wasteful number, since it uses less digits than its factorization.

61000791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89025.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 61000791 is about 7810.3003143285. The cubic root of 61000791 is about 393.6514198161.

The spelling of 61000791 in words is "sixty-one million, seven hundred ninety-one", and thus it is an aban number.