61409403 has 12 divisors (see below), whose sum is σ = 96766488. Its totient is φ = 37217760.

The previous prime is 61409399. The next prime is 61409429. The reversal of 61409403 is 30490416.

61409403 is a `hidden beast` number, since 614 + 0 + 9 + 40 + 3 = 666.

61409403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61409403 - 2² = 61409399 is a prime.

It is a super-2 number, since 2×61409403² = 7542229553632818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61409473) 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 11 ways as a sum of consecutive naturals, for example, 310050 + ... + 310247.

It is an arithmetic number, because the mean of its divisors is an integer number (8063874).

Almost surely, 2^61409403 is an apocalyptic number.

61409403 is a deficient number, since it is larger than the sum of its proper divisors (35357085).

61409403 is a wasteful number, since it uses less digits than its factorization.

61409403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620314 (or 620311 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61409403 is about 7836.4151880819. The cubic root of 61409403 is about 394.5284186807.

Adding to 61409403 its reverse (30490416), we get a palindrome (91899819).

The spelling of 61409403 in words is "sixty-one million, four hundred nine thousand, four hundred three".