61404423 has 8 divisors (see below), whose sum is σ = 84085488. Its totient is φ = 39829824.

The previous prime is 61404403. The next prime is 61404439. The reversal of 61404423 is 32440416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61404423 - 2¹² = 61400327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61404393 and 61404402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61404403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276486 + ... + 276707.

It is an arithmetic number, because the mean of its divisors is an integer number (10510686).

Almost surely, 2^61404423 is an apocalyptic number.

61404423 is a deficient number, since it is larger than the sum of its proper divisors (22681065).

61404423 is a wasteful number, since it uses less digits than its factorization.

61404423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553233.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 61404423 is about 7836.0974343100. The cubic root of 61404423 is about 394.5177536222.

Adding to 61404423 its reverse (32440416), we get a palindrome (93844839).

The spelling of 61404423 in words is "sixty-one million, four hundred four thousand, four hundred twenty-three".