61357764 has 96 divisors (see below), whose sum is σ = 164577280. Its totient is φ = 17635968.

The previous prime is 61357739. The next prime is 61357819. The reversal of 61357764 is 46775316.

61357764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376347 + ... + 376509.

Almost surely, 2^61357764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61357764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82288640).

61357764 is an abundant number, since it is smaller than the sum of its proper divisors (103219516).

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

61357764 is a wasteful number, since it uses less digits than its factorization.

61357764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 327 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 61357764 is about 7833.1196850297. The cubic root of 61357764 is about 394.4178017109.

The spelling of 61357764 in words is "sixty-one million, three hundred fifty-seven thousand, seven hundred sixty-four".