61420974 has 8 divisors (see below), whose sum is σ = 122841960. Its totient is φ = 20473656.

The previous prime is 61420973. The next prime is 61420981. The reversal of 61420974 is 47902416.

It is a happy number.

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

61420974 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61420973) 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, 5118409 + ... + 5118420.

It is an arithmetic number, because the mean of its divisors is an integer number (15355245).

Almost surely, 2^61420974 is an apocalyptic number.

61420974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61420974 is a wasteful number, since it uses less digits than its factorization.

61420974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236834.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 61420974 is about 7837.1534373138. The cubic root of 61420974 is about 394.5531966540.

Adding to 61420974 its product of nonzero digits (12096), we get a triangular number (61433070 = T₁₁₀₈₄).

The spelling of 61420974 in words is "sixty-one million, four hundred twenty thousand, nine hundred seventy-four".