61823803 has 4 divisors (see below), whose sum is σ = 62082720. Its totient is φ = 61564888.

The previous prime is 61823791. The next prime is 61823813. The reversal of 61823803 is 30832816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61823803 - 2⁵ = 61823771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61823813) 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, 129100 + ... + 129577.

It is an arithmetic number, because the mean of its divisors is an integer number (15520680).

Almost surely, 2^61823803 is an apocalyptic number.

61823803 is a deficient number, since it is larger than the sum of its proper divisors (258917).

61823803 is a wasteful number, since it uses less digits than its factorization.

61823803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258916.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 61823803 is about 7862.8113928798. The cubic root of 61823803 is about 395.4138758674.

It can be divided in two parts, 61823 and 803, that added together give a palindrome (62626).

The spelling of 61823803 in words is "sixty-one million, eight hundred twenty-three thousand, eight hundred three".