61497804 has 12 divisors (see below), whose sum is σ = 143494904. Its totient is φ = 20499264.

The previous prime is 61497803. The next prime is 61497809. The reversal of 61497804 is 40879416.

It is a happy number.

61497804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 in 3 ways as a sum of consecutive naturals, for example, 2562397 + ... + 2562420.

Almost surely, 2^61497804 is an apocalyptic number.

It is an amenable number.

61497804 is an abundant number, since it is smaller than the sum of its proper divisors (81997100).

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

61497804 is a wasteful number, since it uses less digits than its factorization.

61497804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124824 (or 5124822 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 61497804 is about 7842.0535575830. The cubic root of 61497804 is about 394.7176404339.

The spelling of 61497804 in words is "sixty-one million, four hundred ninety-seven thousand, eight hundred four".