61774461 has 32 divisors (see below), whose sum is σ = 104966400. Its totient is φ = 35173440.

The previous prime is 61774457. The next prime is 61774483. The reversal of 61774461 is 16447716.

It is not a de Polignac number, because 61774461 - 2² = 61774457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61774411) 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 31 ways as a sum of consecutive naturals, for example, 86775 + ... + 87483.

It is an arithmetic number, because the mean of its divisors is an integer number (3280200).

Almost surely, 2^61774461 is an apocalyptic number.

It is an amenable number.

61774461 is a deficient number, since it is larger than the sum of its proper divisors (43191939).

61774461 is a wasteful number, since it uses less digits than its factorization.

61774461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1180 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 61774461 is about 7859.6730848045. The cubic root of 61774461 is about 395.3086536967.

It can be divided in two parts, 617 and 74461, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 61774461 in words is "sixty-one million, seven hundred seventy-four thousand, four hundred sixty-one".