61929463 has 4 divisors (see below), whose sum is σ = 62542728. Its totient is φ = 61316200.

The previous prime is 61929451. The next prime is 61929467. The reversal of 61929463 is 36492916.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61929463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61929467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306481 + ... + 306682.

It is an arithmetic number, because the mean of its divisors is an integer number (15635682).

Almost surely, 2^61929463 is an apocalyptic number.

61929463 is a deficient number, since it is larger than the sum of its proper divisors (613265).

61929463 is a wasteful number, since it uses less digits than its factorization.

61929463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613264.

The product of its digits is 69984, while the sum is 40.

The square root of 61929463 is about 7869.5274953456. The cubic root of 61929463 is about 395.6390084195.

The spelling of 61929463 in words is "sixty-one million, nine hundred twenty-nine thousand, four hundred sixty-three".