61616233 has 8 divisors (see below), whose sum is σ = 70701120. Its totient is φ = 52602000.

The previous prime is 61616231. The next prime is 61616239. The reversal of 61616233 is 33261616.

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 61616233 - 2¹ = 61616231 is a prime.

It is a super-2 number, since 2×61616233² = 7593120338220578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61616231) 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, 15778 + ... + 19291.

It is an arithmetic number, because the mean of its divisors is an integer number (8837640).

Almost surely, 2^61616233 is an apocalyptic number.

It is an amenable number.

61616233 is a deficient number, since it is larger than the sum of its proper divisors (9084887).

61616233 is a wasteful number, since it uses less digits than its factorization.

61616233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35327.

The product of its digits is 3888, while the sum is 28.

The square root of 61616233 is about 7849.6008178760. The cubic root of 61616233 is about 394.9708529473.

Adding to 61616233 its reverse (33261616), we get a palindrome (94877849).

The spelling of 61616233 in words is "sixty-one million, six hundred sixteen thousand, two hundred thirty-three".