61985435 has 4 divisors (see below), whose sum is σ = 74382528. Its totient is φ = 49588344.

The previous prime is 61985423. The next prime is 61985447. The reversal of 61985435 is 53458916.

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 (61985423) and next prime (61985447).

It is a cyclic number.

It is not a de Polignac number, because 61985435 - 2²² = 57791131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61985392 and 61985401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6198539 + ... + 6198548.

It is an arithmetic number, because the mean of its divisors is an integer number (18595632).

Almost surely, 2^61985435 is an apocalyptic number.

61985435 is a deficient number, since it is larger than the sum of its proper divisors (12397093).

61985435 is a wasteful number, since it uses less digits than its factorization.

61985435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12397092.

The product of its digits is 129600, while the sum is 41.

The square root of 61985435 is about 7873.0829412626. The cubic root of 61985435 is about 395.7581656960.

The spelling of 61985435 in words is "sixty-one million, nine hundred eighty-five thousand, four hundred thirty-five".