61421822 has 32 divisors (see below), whose sum is σ = 119867904. Its totient is φ = 22888800.

The previous prime is 61421821. The next prime is 61421849. The reversal of 61421822 is 22812416.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 61421791 and 61421800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61421821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5129 + ... + 12212.

It is an arithmetic number, because the mean of its divisors is an integer number (3745872).

Almost surely, 2^61421822 is an apocalyptic number.

61421822 is a deficient number, since it is larger than the sum of its proper divisors (58446082).

61421822 is a wasteful number, since it uses less digits than its factorization.

61421822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17384.

The product of its digits is 1536, while the sum is 26.

The square root of 61421822 is about 7837.2075384029. The cubic root of 61421822 is about 394.5550124266. Note that the first 3 decimals are identical.

The spelling of 61421822 in words is "sixty-one million, four hundred twenty-one thousand, eight hundred twenty-two".