61858648 has 16 divisors (see below), whose sum is σ = 122807880. Its totient is φ = 29109888.

The previous prime is 61858619. The next prime is 61858673. The reversal of 61858648 is 84685816.

It is a junction number, because it is equal to n+sod(n) for n = 61858598 and 61858607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227286 + ... + 227557.

Almost surely, 2^61858648 is an apocalyptic number.

61858648 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61858648 is a deficient number, since it is larger than the sum of its proper divisors (60949232).

61858648 is a wasteful number, since it uses less digits than its factorization.

61858648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454866 (or 454862 counting only the distinct ones).

The product of its digits is 368640, while the sum is 46.

The square root of 61858648 is about 7865.0268912446. The cubic root of 61858648 is about 395.4881493570.

The spelling of 61858648 in words is "sixty-one million, eight hundred fifty-eight thousand, six hundred forty-eight".