61895429 has 2 divisors, whose sum is σ = 61895430. Its totient is φ = 61895428.

The previous prime is 61895423. The next prime is 61895441. The reversal of 61895429 is 92459816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60450625 + 1444804 = 7775^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 61895429 - 2¹⁶ = 61829893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61895429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61895423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30947714 + 30947715.

It is an arithmetic number, because the mean of its divisors is an integer number (30947715).

Almost surely, 2^61895429 is an apocalyptic number.

It is an amenable number.

61895429 is a deficient number, since it is larger than the sum of its proper divisors (1).

61895429 is an equidigital number, since it uses as much as digits as its factorization.

61895429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 61895429 is about 7867.3648065918. The cubic root of 61895429 is about 395.5665192532.

The spelling of 61895429 in words is "sixty-one million, eight hundred ninety-five thousand, four hundred twenty-nine".