61434413 has 4 divisors (see below), whose sum is σ = 65048220. Its totient is φ = 57820608.

The previous prime is 61434407. The next prime is 61434419. The reversal of 61434413 is 31443416.

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

It is an interprime number because it is at equal distance from previous prime (61434407) and next prime (61434419).

It can be written as a sum of positive squares in 2 ways, for example, as 47914084 + 13520329 = 6922^2 + 3677^2 .

It is a cyclic number.

It is not a de Polignac number, because 61434413 - 2¹⁶ = 61368877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61434419) 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, 1806878 + ... + 1806911.

It is an arithmetic number, because the mean of its divisors is an integer number (16262055).

Almost surely, 2^61434413 is an apocalyptic number.

It is an amenable number.

61434413 is a deficient number, since it is larger than the sum of its proper divisors (3613807).

61434413 is a wasteful number, since it uses less digits than its factorization.

61434413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613806.

The product of its digits is 3456, while the sum is 26.

The square root of 61434413 is about 7838.0107808040. The cubic root of 61434413 is about 394.5819708299.

Adding to 61434413 its reverse (31443416), we get a palindrome (92877829).

The spelling of 61434413 in words is "sixty-one million, four hundred thirty-four thousand, four hundred thirteen".