61464405 has 16 divisors (see below), whose sum is σ = 99529920. Its totient is φ = 32385408.

The previous prime is 61464397. The next prime is 61464409. The reversal of 61464405 is 50446416.

It is not a de Polignac number, because 61464405 - 2³ = 61464397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61464409) 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 15 ways as a sum of consecutive naturals, for example, 23440 + ... + 25929.

It is an arithmetic number, because the mean of its divisors is an integer number (6220620).

Almost surely, 2^61464405 is an apocalyptic number.

It is an amenable number.

61464405 is a deficient number, since it is larger than the sum of its proper divisors (38065515).

61464405 is a wasteful number, since it uses less digits than its factorization.

61464405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49460.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 61464405 is about 7839.9237878949. The cubic root of 61464405 is about 394.6461714226.

The spelling of 61464405 in words is "sixty-one million, four hundred sixty-four thousand, four hundred five".