61770343 has 4 divisors (see below), whose sum is σ = 62514648. Its totient is φ = 61026040.

The previous prime is 61770329. The next prime is 61770389. The reversal of 61770343 is 34307716.

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 61770343 - 2¹⁷ = 61639271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61770143) 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, 372028 + ... + 372193.

It is an arithmetic number, because the mean of its divisors is an integer number (15628662).

Almost surely, 2^61770343 is an apocalyptic number.

61770343 is a deficient number, since it is larger than the sum of its proper divisors (744305).

61770343 is an equidigital number, since it uses as much as digits as its factorization.

61770343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744304.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 61770343 is about 7859.4111102550. The cubic root of 61770343 is about 395.2998694991.

The spelling of 61770343 in words is "sixty-one million, seven hundred seventy thousand, three hundred forty-three".