61900497 has 16 divisors (see below), whose sum is σ = 91990080. Its totient is φ = 41138496.

The previous prime is 61900483. The next prime is 61900523. The reversal of 61900497 is 79400916.

It is not a de Polignac number, because 61900497 - 2⁴ = 61900481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61900477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5698 + ... + 12500.

It is an arithmetic number, because the mean of its divisors is an integer number (5749380).

Almost surely, 2^61900497 is an apocalyptic number.

It is an amenable number.

61900497 is a deficient number, since it is larger than the sum of its proper divisors (30089583).

61900497 is a wasteful number, since it uses less digits than its factorization.

61900497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149 (or 7143 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 61900497 is about 7867.6868900586. The cubic root of 61900497 is about 395.5773152923.

The spelling of 61900497 in words is "sixty-one million, nine hundred thousand, four hundred ninety-seven".