61497802 has 4 divisors (see below), whose sum is σ = 92246706. Its totient is φ = 30748900.

The previous prime is 61497773. The next prime is 61497803. The reversal of 61497802 is 20879416.

61497802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 56836521 + 4661281 = 7539^2 + 2159^2 .

It is not an unprimeable number, because it can be changed into a prime (61497803) by changing a digit.

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 as a sum of consecutive naturals, namely, 15374449 + ... + 15374452.

Almost surely, 2^61497802 is an apocalyptic number.

61497802 is a deficient number, since it is larger than the sum of its proper divisors (30748904).

61497802 is a wasteful number, since it uses less digits than its factorization.

61497802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30748903.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 61497802 is about 7842.0534300654. The cubic root of 61497802 is about 394.7176361550.

The spelling of 61497802 in words is "sixty-one million, four hundred ninety-seven thousand, eight hundred two".