61994794 has 4 divisors (see below), whose sum is σ = 92992194. Its totient is φ = 30997396.

The previous prime is 61994771. The next prime is 61994797. The reversal of 61994794 is 49749916.

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

It can be written as a sum of positive squares in only one way, i.e., 53509225 + 8485569 = 7315^2 + 2913^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61994797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15498697 + ... + 15498700.

Almost surely, 2^61994794 is an apocalyptic number.

61994794 is a deficient number, since it is larger than the sum of its proper divisors (30997400).

61994794 is a wasteful number, since it uses less digits than its factorization.

61994794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30997399.

The product of its digits is 489888, while the sum is 49.

The square root of 61994794 is about 7873.6772857414. The cubic root of 61994794 is about 395.7780828173.

The spelling of 61994794 in words is "sixty-one million, nine hundred ninety-four thousand, seven hundred ninety-four".