61488837 has 24 divisors (see below), whose sum is σ = 90627264. Its totient is φ = 40166784.

The previous prime is 61488829. The next prime is 61488859. The reversal of 61488837 is 73888416.

It is not a de Polignac number, because 61488837 - 2³ = 61488829 is a prime.

It is a super-2 number, since 2×61488837² = 7561754151225138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61488792 and 61488801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61488887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104458 + ... + 105044.

It is an arithmetic number, because the mean of its divisors is an integer number (3776136).

Almost surely, 2^61488837 is an apocalyptic number.

It is an amenable number.

61488837 is a deficient number, since it is larger than the sum of its proper divisors (29138427).

61488837 is a wasteful number, since it uses less digits than its factorization.

61488837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 806 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 61488837 is about 7841.4818114946. The cubic root of 61488837 is about 394.6984548972.

The spelling of 61488837 in words is "sixty-one million, four hundred eighty-eight thousand, eight hundred thirty-seven".