61396187 has 4 divisors (see below), whose sum is σ = 62312616. Its totient is φ = 60479760.

The previous prime is 61396169. The next prime is 61396211. The reversal of 61396187 is 78169316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61396187 - 2⁶ = 61396123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61396157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458114 + ... + 458247.

It is an arithmetic number, because the mean of its divisors is an integer number (15578154).

Almost surely, 2^61396187 is an apocalyptic number.

61396187 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

61396187 is a deficient number, since it is larger than the sum of its proper divisors (916429).

61396187 is an equidigital number, since it uses as much as digits as its factorization.

61396187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916428.

The product of its digits is 54432, while the sum is 41.

The square root of 61396187 is about 7835.5718999956. The cubic root of 61396187 is about 394.5001143201.

The spelling of 61396187 in words is "sixty-one million, three hundred ninety-six thousand, one hundred eighty-seven".