61812394 has 8 divisors (see below), whose sum is σ = 105964128. Its totient is φ = 26491020.

The previous prime is 61812383. The next prime is 61812397. The reversal of 61812394 is 49321816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61812394² = 7641544104022472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61812397) 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, 2207572 + ... + 2207599.

It is an arithmetic number, because the mean of its divisors is an integer number (13245516).

Almost surely, 2^61812394 is an apocalyptic number.

61812394 is a deficient number, since it is larger than the sum of its proper divisors (44151734).

61812394 is a wasteful number, since it uses less digits than its factorization.

61812394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415180.

The product of its digits is 10368, while the sum is 34.

The square root of 61812394 is about 7862.0858555475. The cubic root of 61812394 is about 395.3895510700.

The spelling of 61812394 in words is "sixty-one million, eight hundred twelve thousand, three hundred ninety-four".