61812794 has 4 divisors (see below), whose sum is σ = 92719194. Its totient is φ = 30906396.

The previous prime is 61812769. The next prime is 61812797. The reversal of 61812794 is 49721816.

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., 61230625 + 582169 = 7825^2 + 763^2 .

It is not an unprimeable number, because it can be changed into a prime (61812797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15453197 + ... + 15453200.

Almost surely, 2^61812794 is an apocalyptic number.

61812794 is a deficient number, since it is larger than the sum of its proper divisors (30906400).

61812794 is a wasteful number, since it uses less digits than its factorization.

61812794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30906399.

The product of its digits is 24192, while the sum is 38.

The square root of 61812794 is about 7862.1112940482. Note that the first 3 decimals coincide. The cubic root of 61812794 is about 395.3904039490.

The spelling of 61812794 in words is "sixty-one million, eight hundred twelve thousand, seven hundred ninety-four".