61946481 has 4 divisors (see below), whose sum is σ = 82595312. Its totient is φ = 41297652.

The previous prime is 61946471. The next prime is 61946483. The reversal of 61946481 is 18464916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61946481 - 2¹⁴ = 61930097 is a prime.

It is a super-2 number, since 2×61946481² = 7674733016566722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61946483) 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, 10324411 + ... + 10324416.

It is an arithmetic number, because the mean of its divisors is an integer number (20648828).

Almost surely, 2^61946481 is an apocalyptic number.

It is an amenable number.

61946481 is a deficient number, since it is larger than the sum of its proper divisors (20648831).

61946481 is a wasteful number, since it uses less digits than its factorization.

61946481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20648830.

The product of its digits is 41472, while the sum is 39.

The square root of 61946481 is about 7870.6086804008. The cubic root of 61946481 is about 395.6752451727.

The spelling of 61946481 in words is "sixty-one million, nine hundred forty-six thousand, four hundred eighty-one".