61429827 has 4 divisors (see below), whose sum is σ = 81906440. Its totient is φ = 40953216.

The previous prime is 61429813. The next prime is 61429829. The reversal of 61429827 is 72892416.

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

It is not a de Polignac number, because 61429827 - 2⁶ = 61429763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61429829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238302 + ... + 10238307.

It is an arithmetic number, because the mean of its divisors is an integer number (20476610).

Almost surely, 2^61429827 is an apocalyptic number.

61429827 is a deficient number, since it is larger than the sum of its proper divisors (20476613).

61429827 is a wasteful number, since it uses less digits than its factorization.

61429827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20476612.

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

The square root of 61429827 is about 7837.7182266269. The cubic root of 61429827 is about 394.5721522399.

The spelling of 61429827 in words is "sixty-one million, four hundred twenty-nine thousand, eight hundred twenty-seven".