61231698 has 24 divisors (see below), whose sum is σ = 144729936. Its totient is φ = 18555000.

The previous prime is 61231693. The next prime is 61231711. The reversal of 61231698 is 89613216.

61231698 is a `hidden beast` number, since 612 + 31 + 6 + 9 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (61231693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154428 + ... + 154823.

It is an arithmetic number, because the mean of its divisors is an integer number (6030414).

Almost surely, 2^61231698 is an apocalyptic number.

61231698 is an abundant number, since it is smaller than the sum of its proper divisors (83498238).

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

61231698 is a wasteful number, since it uses less digits than its factorization.

61231698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309270 (or 309267 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 61231698 is about 7825.0685620000. The cubic root of 61231698 is about 394.1474921703.

The spelling of 61231698 in words is "sixty-one million, two hundred thirty-one thousand, six hundred ninety-eight".