61940670 has 32 divisors (see below), whose sum is σ = 162172800. Its totient is φ = 15015840.

The previous prime is 61940657. The next prime is 61940677. The reversal of 61940670 is 7604916.

It is a happy number.

It is a super-3 number, since 3×61940670³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61940677) 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, 93520 + ... + 94179.

It is an arithmetic number, because the mean of its divisors is an integer number (5067900).

Almost surely, 2^61940670 is an apocalyptic number.

61940670 is an abundant number, since it is smaller than the sum of its proper divisors (100232130).

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

61940670 is a wasteful number, since it uses less digits than its factorization.

61940670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187720.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 61940670 is about 7870.2395135091. The cubic root of 61940670 is about 395.6628724454.

The spelling of 61940670 in words is "sixty-one million, nine hundred forty thousand, six hundred seventy".