61820602 has 16 divisors (see below), whose sum is σ = 98704872. Its totient is φ = 28938240.

The previous prime is 61820593. The next prime is 61820609. The reversal of 61820602 is 20602816.

It can be written as a sum of positive squares in 4 ways, for example, as 49154121 + 12666481 = 7011^2 + 3559^2 .

It is not an unprimeable number, because it can be changed into a prime (61820609) 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 7 ways as a sum of consecutive naturals, for example, 1852 + ... + 11272.

Almost surely, 2^61820602 is an apocalyptic number.

61820602 is a deficient number, since it is larger than the sum of its proper divisors (36884270).

61820602 is a wasteful number, since it uses less digits than its factorization.

61820602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9633.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 61820602 is about 7862.6078370983. The cubic root of 61820602 is about 395.4070514103.

The spelling of 61820602 in words is "sixty-one million, eight hundred twenty thousand, six hundred two".