61471390 has 8 divisors (see below), whose sum is σ = 110648520. Its totient is φ = 24588552.

The previous prime is 61471369. The next prime is 61471411. The reversal of 61471390 is 9317416.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61471369) and next prime (61471411).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073560 + ... + 3073579.

It is an arithmetic number, because the mean of its divisors is an integer number (13831065).

Almost surely, 2^61471390 is an apocalyptic number.

61471390 is a deficient number, since it is larger than the sum of its proper divisors (49177130).

61471390 is a wasteful number, since it uses less digits than its factorization.

61471390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147146.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 61471390 is about 7840.3692515085. The cubic root of 61471390 is about 394.6611204493.

The spelling of 61471390 in words is "sixty-one million, four hundred seventy-one thousand, three hundred ninety".