61849803 has 4 divisors (see below), whose sum is σ = 82466408. Its totient is φ = 41233200.

The previous prime is 61849729. The next prime is 61849813. The reversal of 61849803 is 30894816.

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

It is not a de Polignac number, because 61849803 - 2¹⁰ = 61848779 is a prime.

It is a super-2 number, since 2×61849803² = 7650796262277618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61849813) 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, 10308298 + ... + 10308303.

It is an arithmetic number, because the mean of its divisors is an integer number (20616602).

Almost surely, 2^61849803 is an apocalyptic number.

61849803 is a deficient number, since it is larger than the sum of its proper divisors (20616605).

61849803 is a wasteful number, since it uses less digits than its factorization.

61849803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616604.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 61849803 is about 7864.4645717302. The cubic root of 61849803 is about 395.4692985332.

The spelling of 61849803 in words is "sixty-one million, eight hundred forty-nine thousand, eight hundred three".