61787363 has 4 divisors (see below), whose sum is σ = 67404408. Its totient is φ = 56170320.

The previous prime is 61787359. The next prime is 61787377. The reversal of 61787363 is 36378716.

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 61787363 - 2² = 61787359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61787363.

It is not an unprimeable number, because it can be changed into a prime (61787353) 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, 2808506 + ... + 2808527.

It is an arithmetic number, because the mean of its divisors is an integer number (16851102).

Almost surely, 2^61787363 is an apocalyptic number.

61787363 is a deficient number, since it is larger than the sum of its proper divisors (5617045).

61787363 is a wasteful number, since it uses less digits than its factorization.

61787363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617044.

The product of its digits is 127008, while the sum is 41.

The square root of 61787363 is about 7860.4938140043. The cubic root of 61787363 is about 395.3361727131.

The spelling of 61787363 in words is "sixty-one million, seven hundred eighty-seven thousand, three hundred sixty-three".