61854426 has 12 divisors (see below), whose sum is σ = 134017962. Its totient is φ = 20618136.

The previous prime is 61854421. The next prime is 61854431. The reversal of 61854426 is 62445816.

It is an interprime number because it is at equal distance from previous prime (61854421) and next prime (61854431).

It can be written as a sum of positive squares in only one way, i.e., 61638201 + 216225 = 7851^2 + 465^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61854421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1718161 + ... + 1718196.

Almost surely, 2^61854426 is an apocalyptic number.

61854426 is an abundant number, since it is smaller than the sum of its proper divisors (72163536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61854426 is a wasteful number, since it uses less digits than its factorization.

61854426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436365 (or 3436362 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 61854426 is about 7864.7584832594. The cubic root of 61854426 is about 395.4791514830.

The spelling of 61854426 in words is "sixty-one million, eight hundred fifty-four thousand, four hundred twenty-six".