61701645 has 32 divisors (see below), whose sum is σ = 104688000. Its totient is φ = 30945024.

The previous prime is 61701631. The next prime is 61701659. The reversal of 61701645 is 54610716.

It is an interprime number because it is at equal distance from previous prime (61701631) and next prime (61701659).

It is not a de Polignac number, because 61701645 - 2⁵ = 61701613 is a prime.

It is a super-3 number, since 3×61701645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41739 + ... + 43191.

It is an arithmetic number, because the mean of its divisors is an integer number (3271500).

Almost surely, 2^61701645 is an apocalyptic number.

It is an amenable number.

61701645 is a deficient number, since it is larger than the sum of its proper divisors (42986355).

61701645 is a wasteful number, since it uses less digits than its factorization.

61701645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 61701645 is about 7855.0394652096. The cubic root of 61701645 is about 395.1532706479.

The spelling of 61701645 in words is "sixty-one million, seven hundred one thousand, six hundred forty-five".