61472758 has 4 divisors (see below), whose sum is σ = 92209140. Its totient is φ = 30736378.

The previous prime is 61472753. The next prime is 61472773. The reversal of 61472758 is 85727416.

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

It is a super-2 number, since 2×61472758² = 7557799952253128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 61472758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61472753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15368188 + ... + 15368191.

It is an arithmetic number, because the mean of its divisors is an integer number (23052285).

Almost surely, 2^61472758 is an apocalyptic number.

61472758 is a deficient number, since it is larger than the sum of its proper divisors (30736382).

61472758 is a wasteful number, since it uses less digits than its factorization.

61472758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30736381.

The product of its digits is 94080, while the sum is 40.

The square root of 61472758 is about 7840.4564918122. The cubic root of 61472758 is about 394.6640480573.

The spelling of 61472758 in words is "sixty-one million, four hundred seventy-two thousand, seven hundred fifty-eight".