61452787 has 16 divisors (see below), whose sum is σ = 68709888. Its totient is φ = 54492480.

The previous prime is 61452767. The next prime is 61452791. The reversal of 61452787 is 78725416.

It is a cyclic number.

It is not a de Polignac number, because 61452787 - 2¹⁹ = 60928499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61452767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82338 + ... + 83080.

It is an arithmetic number, because the mean of its divisors is an integer number (4294368).

Almost surely, 2^61452787 is an apocalyptic number.

61452787 is a deficient number, since it is larger than the sum of its proper divisors (7257101).

61452787 is a wasteful number, since it uses less digits than its factorization.

61452787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its digits is 94080, while the sum is 40.

The square root of 61452787 is about 7839.1828017976. The cubic root of 61452787 is about 394.6213045199.

The spelling of 61452787 in words is "sixty-one million, four hundred fifty-two thousand, seven hundred eighty-seven".