61990414 has 8 divisors (see below), whose sum is σ = 93022560. Its totient is φ = 30982896.

The previous prime is 61990403. The next prime is 61990417. The reversal of 61990414 is 41409916.

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

It is a super-2 number, since 2×61990414² = 7685622855782792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61990414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61990417) 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, 2667 + ... + 11449.

It is an arithmetic number, because the mean of its divisors is an integer number (11627820).

Almost surely, 2^61990414 is an apocalyptic number.

61990414 is a deficient number, since it is larger than the sum of its proper divisors (31032146).

61990414 is a wasteful number, since it uses less digits than its factorization.

61990414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12314.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 61990414 is about 7873.3991388726. The cubic root of 61990414 is about 395.7687618796.

The spelling of 61990414 in words is "sixty-one million, nine hundred ninety thousand, four hundred fourteen".