61734407 has 4 divisors (see below), whose sum is σ = 70553616. Its totient is φ = 52915200.

The previous prime is 61734383. The next prime is 61734419. The reversal of 61734407 is 70443716.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61734407 - 2²⁰ = 60685831 is a prime.

It is a super-2 number, since 2×61734407² = 7622274015283298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61734437) 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 3 ways as a sum of consecutive naturals, for example, 4409594 + ... + 4409607.

It is an arithmetic number, because the mean of its divisors is an integer number (17638404).

Almost surely, 2^61734407 is an apocalyptic number.

61734407 is a deficient number, since it is larger than the sum of its proper divisors (8819209).

61734407 is an equidigital number, since it uses as much as digits as its factorization.

61734407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8819208.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 61734407 is about 7857.1246012775. The cubic root of 61734407 is about 395.2231970428.

The spelling of 61734407 in words is "sixty-one million, seven hundred thirty-four thousand, four hundred seven".