61906463 has 8 divisors (see below), whose sum is σ = 62832000. Its totient is φ = 60985368.

The previous prime is 61906451. The next prime is 61906477. The reversal of 61906463 is 36460916.

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 61906463 - 2¹² = 61902367 is a prime.

It is a super-2 number, since 2×61906463² = 7664820322340738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61906423) 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, 35588 + ... + 37286.

It is an arithmetic number, because the mean of its divisors is an integer number (7854000).

Almost surely, 2^61906463 is an apocalyptic number.

61906463 is a deficient number, since it is larger than the sum of its proper divisors (925537).

61906463 is a wasteful number, since it uses less digits than its factorization.

61906463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 61906463 is about 7868.0660266675. The cubic root of 61906463 is about 395.5900235287.

The spelling of 61906463 in words is "sixty-one million, nine hundred six thousand, four hundred sixty-three".