61862005 has 8 divisors (see below), whose sum is σ = 78141600. Its totient is φ = 46884816.

The previous prime is 61861979. The next prime is 61862023. The reversal of 61862005 is 50026816.

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

It is a cyclic number.

It is not a de Polignac number, because 61862005 - 2⁹ = 61861493 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 325495 + ... + 325684.

It is an arithmetic number, because the mean of its divisors is an integer number (9767700).

Almost surely, 2^61862005 is an apocalyptic number.

It is an amenable number.

61862005 is a deficient number, since it is larger than the sum of its proper divisors (16279595).

61862005 is a wasteful number, since it uses less digits than its factorization.

61862005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651203.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 61862005 is about 7865.2403014784. The cubic root of 61862005 is about 395.4953034615.

The spelling of 61862005 in words is "sixty-one million, eight hundred sixty-two thousand, five".