61421935 has 8 divisors (see below), whose sum is σ = 78042096. Its totient is φ = 46247040.

The previous prime is 61421911. The next prime is 61421939. The reversal of 61421935 is 53912416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61421935 - 2¹¹ = 61419887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61421897 and 61421906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61421939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361221 + ... + 361390.

It is an arithmetic number, because the mean of its divisors is an integer number (9755262).

Almost surely, 2^61421935 is an apocalyptic number.

61421935 is a deficient number, since it is larger than the sum of its proper divisors (16620161).

61421935 is a wasteful number, since it uses less digits than its factorization.

61421935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722633.

The product of its digits is 6480, while the sum is 31.

The square root of 61421935 is about 7837.2147476001. The cubic root of 61421935 is about 394.5552543856. Note that the first 3 decimals are identical.

The spelling of 61421935 in words is "sixty-one million, four hundred twenty-one thousand, nine hundred thirty-five".