61746072 has 32 divisors (see below), whose sum is σ = 154927680. Its totient is φ = 20507040.

The previous prime is 61746071. The next prime is 61746077. The reversal of 61746072 is 27064716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61746071) 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, 2247 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (4841490).

Almost surely, 2^61746072 is an apocalyptic number.

It is an amenable number.

61746072 is an abundant number, since it is smaller than the sum of its proper divisors (93181608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61746072 is a wasteful number, since it uses less digits than its factorization.

61746072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383 (or 9379 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 61746072 is about 7857.8668861212. The cubic root of 61746072 is about 395.2480885551.

It can be divided in two parts, 6174 and 6072, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 61746072 in words is "sixty-one million, seven hundred forty-six thousand, seventy-two".