61749682 has 4 divisors (see below), whose sum is σ = 92624526. Its totient is φ = 30874840.

The previous prime is 61749659. The next prime is 61749689. The reversal of 61749682 is 28694716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54774801 + 6974881 = 7401^2 + 2641^2 .

It is a super-2 number, since 2×61749682² = 7626046454202248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61749689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15437419 + ... + 15437422.

Almost surely, 2^61749682 is an apocalyptic number.

61749682 is a deficient number, since it is larger than the sum of its proper divisors (30874844).

61749682 is a wasteful number, since it uses less digits than its factorization.

61749682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30874843.

The product of its digits is 145152, while the sum is 43.

The square root of 61749682 is about 7858.0965888693. The cubic root of 61749682 is about 395.2557911654.

The spelling of 61749682 in words is "sixty-one million, seven hundred forty-nine thousand, six hundred eighty-two".