61690616 has 16 divisors (see below), whose sum is σ = 124567800. Its totient is φ = 28472544.

The previous prime is 61690613. The next prime is 61690639. The reversal of 61690616 is 61609616.

It is a super-3 number, since 3×61690616³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61690613) 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, 296486 + ... + 296693.

Almost surely, 2^61690616 is an apocalyptic number.

It is an amenable number.

61690616 is an abundant number, since it is smaller than the sum of its proper divisors (62877184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61690616 is a wasteful number, since it uses less digits than its factorization.

61690616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593198 (or 593194 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 61690616 is about 7854.3374004431. The cubic root of 61690616 is about 395.1297250567.

The spelling of 61690616 in words is "sixty-one million, six hundred ninety thousand, six hundred sixteen".