61650838 has 16 divisors (see below), whose sum is σ = 93513456. Its totient is φ = 30481920.

The previous prime is 61650829. The next prime is 61650881. The reversal of 61650838 is 83805616.

It is a super-2 number, since 2×61650838² = 7601651652204488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61650797 and 61650806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91270 + ... + 91942.

It is an arithmetic number, because the mean of its divisors is an integer number (5844591).

Almost surely, 2^61650838 is an apocalyptic number.

61650838 is a deficient number, since it is larger than the sum of its proper divisors (31862618).

61650838 is a wasteful number, since it uses less digits than its factorization.

61650838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 61650838 is about 7851.8047606904. The cubic root of 61650838 is about 395.0447804810.

The spelling of 61650838 in words is "sixty-one million, six hundred fifty thousand, eight hundred thirty-eight".