61672975 has 24 divisors (see below), whose sum is σ = 94125920. Its totient is φ = 39035520.

The previous prime is 61672967. The next prime is 61672987. The reversal of 61672975 is 57927616.

It is not a de Polignac number, because 61672975 - 2³ = 61672967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11280 + ... + 15829.

Almost surely, 2^61672975 is an apocalyptic number.

61672975 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61672975 is a deficient number, since it is larger than the sum of its proper divisors (32452945).

61672975 is a wasteful number, since it uses less digits than its factorization.

61672975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27139 (or 27134 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 61672975 is about 7853.2143100771. The cubic root of 61672975 is about 395.0920578044.

The spelling of 61672975 in words is "sixty-one million, six hundred seventy-two thousand, nine hundred seventy-five".