61873773 has 12 divisors (see below), whose sum is σ = 89333280. Its totient is φ = 38075856.

The previous prime is 61873769. The next prime is 61873781. The reversal of 61873773 is 37737816.

It is not a de Polignac number, because 61873773 - 2² = 61873769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61873723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60513 + ... + 61526.

It is an arithmetic number, because the mean of its divisors is an integer number (7444440).

Almost surely, 2^61873773 is an apocalyptic number.

It is an amenable number.

61873773 is a deficient number, since it is larger than the sum of its proper divisors (27459507).

61873773 is a wasteful number, since it uses less digits than its factorization.

61873773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122068 (or 122055 counting only the distinct ones).

The product of its digits is 148176, while the sum is 42.

The square root of 61873773 is about 7865.9883676497. The cubic root of 61873773 is about 395.5203802090.

The spelling of 61873773 in words is "sixty-one million, eight hundred seventy-three thousand, seven hundred seventy-three".