61862445 has 12 divisors (see below), whose sum is σ = 107228316. Its totient is φ = 32993280.

The previous prime is 61862393. The next prime is 61862447. The reversal of 61862445 is 54426816.

It can be written as a sum of positive squares in 2 ways, for example, as 16016004 + 45846441 = 4002^2 + 6771^2 .

It is not a de Polignac number, because 61862445 - 2¹⁴ = 61846061 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61862447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687316 + ... + 687405.

It is an arithmetic number, because the mean of its divisors is an integer number (8935693).

Almost surely, 2^61862445 is an apocalyptic number.

It is an amenable number.

61862445 is a deficient number, since it is larger than the sum of its proper divisors (45365871).

61862445 is a wasteful number, since it uses less digits than its factorization.

61862445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374732 (or 1374729 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 61862445 is about 7865.2682726020. The cubic root of 61862445 is about 395.4962411266.

The spelling of 61862445 in words is "sixty-one million, eight hundred sixty-two thousand, four hundred forty-five".