61997498 has 8 divisors (see below), whose sum is σ = 93031092. Its totient is φ = 30987136.

The previous prime is 61997479. The next prime is 61997503. The reversal of 61997498 is 89479916.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61042969 + 954529 = 7813^2 + 977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4586 + ... + 12042.

Almost surely, 2^61997498 is an apocalyptic number.

61997498 is a deficient number, since it is larger than the sum of its proper divisors (31033594).

61997498 is a wasteful number, since it uses less digits than its factorization.

61997498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616.

The product of its digits is 979776, while the sum is 53.

The square root of 61997498 is about 7873.8489952500. The cubic root of 61997498 is about 395.7838368938.

The spelling of 61997498 in words is "sixty-one million, nine hundred ninety-seven thousand, four hundred ninety-eight".